Version 3.2: Cross-Katalog-Suche und Multi-Lieferanten-Preise

- Cross-Katalog-Suche: Artikel werden via EAN/Hersteller-Art.Nr. in allen Katalogen gefunden
- Multi-Lieferanten-Anzeige mit Preisvergleich (Prozent guenstiger/teurer)
- Fehlende Lieferantenpreise werden bei zugeordneten Produkten angeboten
- Fix: Kluxen-Datanorm Preise im A-Record (Cent -> Euro Umrechnung)
- Neue Uebersetzungen fuer Lieferanten-Alternativen

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ChangeLog.md

@@ -1,5 +1,21 @@
 # CHANGELOG MODULE IMPORTZUGFERD FOR [DOLIBARR ERP CRM](https://www.dolibarr.org)
 
+## 3.2
+
+### Neue Funktionen
+- Cross-Katalog-Suche: Artikel werden ueber EAN/Hersteller-Artikelnummer in allen Lieferanten-Katalogen gefunden
+- Multi-Lieferanten-Anzeige: Bei Produktzuordnung werden alle verfuegbaren Lieferanten mit Preisen angezeigt
+- Fehlende Lieferantenpreise: Bei zugeordneten Produkten werden fehlende EK-Preise anderer Lieferanten angeboten
+- Preisvergleich mit Prozentangabe (guenstiger/teurer) fuer Lieferanten-Alternativen
+
+### Bugfixes
+- Datanorm Import: Kluxen-Format (Preise im A-Record in Cent) wird jetzt korrekt verarbeitet
+- Datanorm Import: Preise aus A-Record werden von Cent in Euro umgerechnet (geteilt durch 100)
+
+### Hinweise
+- Kluxen-Katalog enthaelt nur Listenpreise (UVP), keine Netto-Einkaufspreise
+- Cross-Katalog-Suche erfordert aktivierte Einstellung "In allen Lieferanten-Katalogen suchen"
+
 ## 2.1
 
 ### Bugfixes

class/datanorm.class.php

@@ -510,44 +510,56 @@ class Datanorm extends CommonObject
         global $conf;
 
         $results = array();
+        $foundEan = '';
+        $foundManufacturerRef = '';
+        $foundIds = array(); // Track found IDs to avoid duplicates
 
         // First try exact match with specified supplier
         if ($fk_soc > 0) {
             $result = $this->fetchByArticleNumber($fk_soc, $article_number);
             if ($result > 0) {
                 $results[] = $this->toArray();
+                $foundIds[$this->id] = true;
+                // Store EAN and manufacturer_ref for cross-catalog search
+                $foundEan = $this->ean;
+                $foundManufacturerRef = $this->manufacturer_ref;
+
+                // If not searching all catalogs, return immediately
+                if (!$searchAll) {
                     return $results;
                 }
             }
+        }
 
-        // Search partial match
+        // If searchAll is enabled and we found article with EAN/manufacturer_ref,
+        // search other catalogs using these identifiers (cross-catalog search)
+        if ($searchAll && $fk_soc > 0 && (!empty($foundEan) || !empty($foundManufacturerRef))) {
             $sql = "SELECT rowid, fk_soc, article_number, short_text1, short_text2,";
             $sql .= " ean, manufacturer_ref, manufacturer_name, unit_code,";
             $sql .= " price, price_unit, discount_group, product_group, matchcode";
             $sql .= " FROM " . MAIN_DB_PREFIX . $this->table_element;
-        $sql .= " WHERE (article_number LIKE '" . $this->db->escape($article_number) . "%'";
+            $sql .= " WHERE (";
-        $sql .= " OR ean = '" . $this->db->escape($article_number) . "'";
+
-        $sql .= " OR manufacturer_ref LIKE '" . $this->db->escape($article_number) . "%')";
+            $conditions = array();
+            if (!empty($foundEan)) {
+                $conditions[] = "ean = '" . $this->db->escape($foundEan) . "'";
+            }
+            if (!empty($foundManufacturerRef)) {
+                $conditions[] = "manufacturer_ref = '" . $this->db->escape($foundManufacturerRef) . "'";
+            }
+            $sql .= implode(' OR ', $conditions) . ")";
+
             $sql .= " AND active = 1";
             $sql .= " AND entity = " . (int) $conf->entity;
+            $sql .= " AND fk_soc != " . (int) $fk_soc; // Exclude already found supplier
 
-        if ($fk_soc > 0 && !$searchAll) {
+            $sql .= " ORDER BY price ASC"; // Show cheapest alternatives first
-            $sql .= " AND fk_soc = " . (int) $fk_soc;
+            $sql .= " LIMIT " . (int) ($limit - count($results));
-        }
-
-        // ORDER BY clause
-        if ($fk_soc > 0 && $searchAll) {
-            // Order by matching supplier first
-            $sql .= " ORDER BY CASE WHEN fk_soc = " . (int) $fk_soc . " THEN 0 ELSE 1 END, article_number";
-        } else {
-            $sql .= " ORDER BY article_number";
-        }
-
-        $sql .= " LIMIT " . (int) $limit;
 
             $resql = $this->db->query($sql);
             if ($resql) {
                 while ($obj = $this->db->fetch_object($resql)) {
+                    if (!isset($foundIds[$obj->rowid])) {
                         $results[] = array(
                             'id' => $obj->rowid,
                             'fk_soc' => $obj->fk_soc,
@@ -564,6 +576,65 @@ class Datanorm extends CommonObject
                             'product_group' => $obj->product_group,
                             'matchcode' => $obj->matchcode,
                         );
+                        $foundIds[$obj->rowid] = true;
+                    }
+                }
+                $this->db->free($resql);
+            }
+
+            // If we found results via cross-catalog search, return them
+            if (!empty($results)) {
+                return $results;
+            }
+        }
+
+        // Fallback: Search by partial match on article_number, ean, or manufacturer_ref
+        $sql = "SELECT rowid, fk_soc, article_number, short_text1, short_text2,";
+        $sql .= " ean, manufacturer_ref, manufacturer_name, unit_code,";
+        $sql .= " price, price_unit, discount_group, product_group, matchcode";
+        $sql .= " FROM " . MAIN_DB_PREFIX . $this->table_element;
+        $sql .= " WHERE (article_number LIKE '" . $this->db->escape($article_number) . "%'";
+        $sql .= " OR ean = '" . $this->db->escape($article_number) . "'";
+        $sql .= " OR manufacturer_ref LIKE '" . $this->db->escape($article_number) . "%')";
+        $sql .= " AND active = 1";
+        $sql .= " AND entity = " . (int) $conf->entity;
+
+        if ($fk_soc > 0 && !$searchAll) {
+            $sql .= " AND fk_soc = " . (int) $fk_soc;
+        }
+
+        // ORDER BY clause
+        if ($fk_soc > 0 && $searchAll) {
+            // Order by matching supplier first, then by price
+            $sql .= " ORDER BY CASE WHEN fk_soc = " . (int) $fk_soc . " THEN 0 ELSE 1 END, price ASC";
+        } else {
+            $sql .= " ORDER BY article_number";
+        }
+
+        $sql .= " LIMIT " . (int) $limit;
+
+        $resql = $this->db->query($sql);
+        if ($resql) {
+            while ($obj = $this->db->fetch_object($resql)) {
+                if (!isset($foundIds[$obj->rowid])) {
+                    $results[] = array(
+                        'id' => $obj->rowid,
+                        'fk_soc' => $obj->fk_soc,
+                        'article_number' => $obj->article_number,
+                        'short_text1' => $obj->short_text1,
+                        'short_text2' => $obj->short_text2,
+                        'ean' => $obj->ean,
+                        'manufacturer_ref' => $obj->manufacturer_ref,
+                        'manufacturer_name' => $obj->manufacturer_name,
+                        'unit_code' => $obj->unit_code,
+                        'price' => $obj->price,
+                        'price_unit' => $obj->price_unit,
+                        'discount_group' => $obj->discount_group,
+                        'product_group' => $obj->product_group,
+                        'matchcode' => $obj->matchcode,
+                    );
+                    $foundIds[$obj->rowid] = true;
+                }
             }
             $this->db->free($resql);
         }

class/datanormparser.class.php

@@ -435,13 +435,23 @@ class DatanormParser
         $firstField = trim($parts[0] ?? '');
 
         if ($firstField === 'A' && isset($parts[1]) && strlen(trim($parts[1])) <= 2) {
-            // Sonepar format with action code (N=New, L=Delete, A=Update)
+            // Sonepar/Kluxen format with action code (N=New, L=Delete, A=Update)
             // A;N;ArtNr;TextKz;Kurztext1;Kurztext2;PreisKz;PE;ME;Preis;RabGrp;WG;LangTextKey
             // PE is at index 7 and is a CODE (0=1, 1=10, 2=100, 3=1000)
+            // Preis is at index 9 - in CENTS (e.g., 27800 = 278,00 €)
             $actionCode = strtoupper(trim($parts[1] ?? 'N'));
             $peCode = (int)trim($parts[7] ?? '0');
             $priceUnit = self::convertPriceUnitCode($peCode);
 
+            // Price from A-record (for formats without separate DATPREIS file like Kluxen)
+            // Price is in cents, convert to euros
+            $priceRaw = trim($parts[9] ?? '0');
+            $price = 0.0;
+            if (!empty($priceRaw) && is_numeric($priceRaw)) {
+                // Price is in cents (integer without decimal), convert to euros
+                $price = (float)$priceRaw / 100;
+            }
+
             $article = array(
                 'article_number' => trim($parts[2] ?? ''),
                 'action_code' => $actionCode,                 // N=New, A=Update, L=Delete
@@ -458,7 +468,7 @@ class DatanormParser
                 'manufacturer_name' => '',
                 'ean' => '',
                 'long_text' => '',
-                'price' => 0,
+                'price' => $price,                            // Price from A-record (in euros)
             );
         } else {
             // Standard format: A;ArtNr;Matchcode;Kurztext1;Kurztext2;ME;PE;RabGrp;WG;...

core/modules/modImportZugferd.class.php

@@ -76,7 +76,7 @@ class modImportZugferd extends DolibarrModules
 		$this->editor_squarred_logo = '';					// Must be image filename into the module/img directory followed with @modulename. Example: 'myimage.png@importzugferd'
 
 		// Possible values for version are: 'development', 'experimental', 'dolibarr', 'dolibarr_deprecated', 'experimental_deprecated' or a version string like 'x.y.z'
-		$this->version = '3.0';
+		$this->version = '3.2';
 		// Url to the file with your last numberversion of this module
 		//$this->url_last_version = 'http://www.example.com/versionmodule.txt';
 

import.php

@@ -391,6 +391,80 @@ if ($action == 'removeproduct' && $line_id > 0) {
     $import->fetch($id);
 }
 
+// Add missing supplier prices from other catalogs
+if ($action == 'addmissingprices' && $id > 0) {
+    $import->fetch($id);
+    $fk_product = GETPOSTINT('fk_product');
+    $addSupplierPrices = GETPOST('add_supplier_prices', 'array');
+
+    if ($fk_product > 0 && !empty($addSupplierPrices)) {
+        require_once DOL_DOCUMENT_ROOT.'/fourn/class/fournisseur.product.class.php';
+        require_once './class/datanorm.class.php';
+        require_once './class/productmapping.class.php';
+
+        $addedCount = 0;
+
+        foreach ($addSupplierPrices as $socId => $datanormId) {
+            // Fetch the Datanorm article
+            $datanorm = new Datanorm($db);
+            if ($datanorm->fetch($datanormId) > 0) {
+                $altSupplier = new Societe($db);
+                $altSupplier->fetch($socId);
+
+                $purchasePrice = $datanorm->price;
+                if ($datanorm->price_unit > 1) {
+                    $purchasePrice = $datanorm->price / $datanorm->price_unit;
+                }
+
+                // Prepare extrafields
+                $extrafields = array();
+                if (!empty($datanorm->metal_surcharge) && $datanorm->metal_surcharge > 0) {
+                    $extrafields['options_kupferzuschlag'] = $datanorm->metal_surcharge;
+                }
+                if (!empty($datanorm->price_unit) && $datanorm->price_unit > 1) {
+                    $extrafields['options_preiseinheit'] = $datanorm->price_unit;
+                }
+                if (!empty($datanorm->product_group)) {
+                    $extrafields['options_warengruppe'] = $datanorm->product_group;
+                }
+
+                // Add supplier price
+                $prodfourn = new ProductFournisseur($db);
+                $prodfourn->id = $fk_product;
+                $result = $prodfourn->update_buyprice(
+                    1, $purchasePrice, $user, 'HT', $altSupplier, 0,
+                    $datanorm->article_number, 19,
+                    0, 0, 0, 0, 0, 0, array(), '',
+                    0, 'HT', 1, '',
+                    trim($datanorm->short_text1 . ($datanorm->short_text2 ? ' ' . $datanorm->short_text2 : '')),
+                    !empty($datanorm->ean) ? $datanorm->ean : '',
+                    !empty($datanorm->ean) ? 2 : 0,
+                    $extrafields
+                );
+
+                if ($result > 0) {
+                    // Create product mapping
+                    $mapping = new ProductMapping($db);
+                    $mapping->fk_soc = $socId;
+                    $mapping->supplier_ref = $datanorm->article_number;
+                    $mapping->fk_product = $fk_product;
+                    $mapping->ean = $datanorm->ean;
+                    $mapping->manufacturer_ref = $datanorm->manufacturer_ref;
+                    $mapping->description = $datanorm->short_text1;
+                    $mapping->create($user);
+
+                    $addedCount++;
+                }
+            }
+        }
+
+        if ($addedCount > 0) {
+            setEventMessages($langs->trans('SupplierPricesAdded', $addedCount), null, 'mesgs');
+        }
+    }
+    $action = 'edit';
+}
+
 // Update supplier
 if ($action == 'setsupplier' && $id > 0) {
     $import->fetch($id);
@@ -883,6 +957,70 @@ if ($action == 'createallfromdatanorm' && $id > 0) {
                 if ($productExists && $existingProductId > 0) {
                     // Product exists - just assign it to the line
                     $lineObj->setProduct($existingProductId, 'datanorm', $user);
+
+                    // Add additional supplier prices from selected alternatives (for existing products too)
+                    $supplierPricesPost = GETPOST('supplier_prices', 'array');
+                    if (!empty($supplierPricesPost[$lineObj->id])) {
+                        foreach ($supplierPricesPost[$lineObj->id] as $altSocId => $altDatanormId) {
+                            // Check if supplier price already exists for this product/supplier
+                            $sqlCheckSupplier = "SELECT rowid FROM ".MAIN_DB_PREFIX."product_fournisseur_price";
+                            $sqlCheckSupplier .= " WHERE fk_product = ".(int)$existingProductId;
+                            $sqlCheckSupplier .= " AND fk_soc = ".(int)$altSocId;
+                            $resCheckSupplier = $db->query($sqlCheckSupplier);
+                            if ($resCheckSupplier && $db->num_rows($resCheckSupplier) > 0) {
+                                continue; // Skip if supplier price already exists
+                            }
+
+                            // Fetch the alternative Datanorm article
+                            $altDatanorm = new Datanorm($db);
+                            if ($altDatanorm->fetch($altDatanormId) > 0) {
+                                $altSupplier = new Societe($db);
+                                $altSupplier->fetch($altSocId);
+
+                                $altPurchasePrice = $altDatanorm->price;
+                                if ($altDatanorm->price_unit > 1) {
+                                    $altPurchasePrice = $altDatanorm->price / $altDatanorm->price_unit;
+                                }
+
+                                // Prepare extrafields
+                                $altExtrafields = array();
+                                if (!empty($altDatanorm->metal_surcharge) && $altDatanorm->metal_surcharge > 0) {
+                                    $altExtrafields['options_kupferzuschlag'] = $altDatanorm->metal_surcharge;
+                                }
+                                if (!empty($altDatanorm->price_unit) && $altDatanorm->price_unit > 1) {
+                                    $altExtrafields['options_preiseinheit'] = $altDatanorm->price_unit;
+                                }
+                                if (!empty($altDatanorm->product_group)) {
+                                    $altExtrafields['options_warengruppe'] = $altDatanorm->product_group;
+                                }
+
+                                // Add supplier price
+                                $altProdfourn = new ProductFournisseur($db);
+                                $altProdfourn->id = $existingProductId;
+                                $altProdfourn->update_buyprice(
+                                    1, $altPurchasePrice, $user, 'HT', $altSupplier, 0,
+                                    $altDatanorm->article_number, $lineObj->tax_percent ?: 19,
+                                    0, 0, 0, 0, 0, 0, array(), '',
+                                    0, 'HT', 1, '',
+                                    trim($altDatanorm->short_text1 . ($altDatanorm->short_text2 ? ' ' . $altDatanorm->short_text2 : '')),
+                                    !empty($altDatanorm->ean) ? $altDatanorm->ean : '',
+                                    !empty($altDatanorm->ean) ? 2 : 0,
+                                    $altExtrafields
+                                );
+
+                                // Create product mapping
+                                $altMapping = new ProductMapping($db);
+                                $altMapping->fk_soc = $altSocId;
+                                $altMapping->supplier_ref = $altDatanorm->article_number;
+                                $altMapping->fk_product = $existingProductId;
+                                $altMapping->ean = $altDatanorm->ean;
+                                $altMapping->manufacturer_ref = $altDatanorm->manufacturer_ref;
+                                $altMapping->description = $altDatanorm->short_text1;
+                                $altMapping->create($user);
+                            }
+                        }
+                    }
+
                     $assignedCount++;
                 } else {
                     // Create new product
@@ -1025,6 +1163,71 @@ if ($action == 'createallfromdatanorm' && $id > 0) {
                         $mapping->description = $datanorm->short_text1;
                         $mapping->create($user);
 
+                        // Add additional supplier prices from selected alternatives
+                        $supplierPricesPost = GETPOST('supplier_prices', 'array');
+                        if (!empty($supplierPricesPost[$lineObj->id])) {
+                            foreach ($supplierPricesPost[$lineObj->id] as $altSocId => $altDatanormId) {
+                                // Skip the main invoice supplier (already added above)
+                                if ($altSocId == $import->fk_soc) {
+                                    continue;
+                                }
+
+                                // Fetch the alternative Datanorm article
+                                $altDatanorm = new Datanorm($db);
+                                if ($altDatanorm->fetch($altDatanormId) > 0) {
+                                    $altSupplier = new Societe($db);
+                                    $altSupplier->fetch($altSocId);
+
+                                    $altPurchasePrice = $altDatanorm->price;
+                                    if ($altDatanorm->price_unit > 1) {
+                                        $altPurchasePrice = $altDatanorm->price / $altDatanorm->price_unit;
+                                    }
+
+                                    // Prepare extrafields for alternative supplier price
+                                    $altExtrafields = array();
+                                    if (!empty($altDatanorm->metal_surcharge) && $altDatanorm->metal_surcharge > 0) {
+                                        $altExtrafields['options_kupferzuschlag'] = $altDatanorm->metal_surcharge;
+                                    }
+                                    if (!empty($altDatanorm->price_unit) && $altDatanorm->price_unit > 1) {
+                                        $altExtrafields['options_preiseinheit'] = $altDatanorm->price_unit;
+                                    }
+                                    if (!empty($altDatanorm->product_group)) {
+                                        $altExtrafields['options_warengruppe'] = $altDatanorm->product_group;
+                                    }
+
+                                    // Add supplier price for alternative supplier
+                                    $altProdfourn = new ProductFournisseur($db);
+                                    $altProdfourn->id = $newproduct->id;
+                                    $altProdfourn->update_buyprice(
+                                        1, // Quantity
+                                        $altPurchasePrice, // Price
+                                        $user,
+                                        'HT', // Price base
+                                        $altSupplier, // Alternative supplier
+                                        0, // Availability
+                                        $altDatanorm->article_number, // Supplier ref
+                                        $lineObj->tax_percent ?: 19, // VAT
+                                        0, 0, 0, 0, 0, 0, array(), '',
+                                        0, 'HT', 1, '',
+                                        trim($altDatanorm->short_text1 . ($altDatanorm->short_text2 ? ' ' . $altDatanorm->short_text2 : '')),
+                                        !empty($altDatanorm->ean) ? $altDatanorm->ean : '',
+                                        !empty($altDatanorm->ean) ? 2 : 0,
+                                        $altExtrafields
+                                    );
+
+                                    // Create product mapping for alternative supplier
+                                    $altMapping = new ProductMapping($db);
+                                    $altMapping->fk_soc = $altSocId;
+                                    $altMapping->supplier_ref = $altDatanorm->article_number;
+                                    $altMapping->fk_product = $newproduct->id;
+                                    $altMapping->ean = $altDatanorm->ean;
+                                    $altMapping->manufacturer_ref = $altDatanorm->manufacturer_ref;
+                                    $altMapping->description = $altDatanorm->short_text1;
+                                    $altMapping->create($user);
+                                }
+                            }
+                        }
+
                         // Assign to import line
                         $lineObj->setProduct($newproduct->id, 'datanorm', $user);
                         $createdCount++;
@@ -1091,14 +1294,15 @@ if ($action == 'previewdatanorm' && $id > 0) {
                 continue;
             }
 
-            // Search in Datanorm database
+            // Search in Datanorm database - get ALL supplier alternatives
-            $results = $datanorm->searchByArticleNumber($lineObj->supplier_ref, $import->fk_soc, $searchAll, 1);
+            $results = $datanorm->searchByArticleNumber($lineObj->supplier_ref, $import->fk_soc, $searchAll, 10);
 
             if (empty($results) && !empty($lineObj->ean)) {
-                $results = $datanorm->searchByArticleNumber($lineObj->ean, $import->fk_soc, $searchAll, 1);
+                $results = $datanorm->searchByArticleNumber($lineObj->ean, $import->fk_soc, $searchAll, 10);
             }
 
             if (!empty($results)) {
+                // Process the primary result (first = current supplier or cheapest)
                 $datanormArticle = $results[0];
                 $datanorm->fetch($datanormArticle['id']);
 
@@ -1164,6 +1368,32 @@ if ($action == 'previewdatanorm' && $id > 0) {
                     }
                 }
 
+                // Build supplier alternatives array
+                $supplierAlternatives = array();
+                foreach ($results as $altResult) {
+                    $altSupplier = new Societe($db);
+                    $altSupplier->fetch($altResult['fk_soc']);
+
+                    $altPurchasePrice = $altResult['price'];
+                    if ($altResult['price_unit'] > 1) {
+                        $altPurchasePrice = $altResult['price'] / $altResult['price_unit'];
+                    }
+
+                    $supplierAlternatives[] = array(
+                        'datanorm_id' => $altResult['id'],
+                        'fk_soc' => $altResult['fk_soc'],
+                        'supplier_name' => $altSupplier->name,
+                        'article_number' => $altResult['article_number'],
+                        'short_text1' => $altResult['short_text1'],
+                        'price' => $altResult['price'],
+                        'price_unit' => $altResult['price_unit'],
+                        'purchase_price' => $altPurchasePrice,
+                        'ean' => $altResult['ean'],
+                        'manufacturer_ref' => $altResult['manufacturer_ref'],
+                        'is_invoice_supplier' => ($altResult['fk_soc'] == $import->fk_soc),
+                    );
+                }
+
                 // Store match info for preview
                 $datanormPreviewMatches[] = array(
                     'line_id' => $lineObj->id,
@@ -1183,7 +1413,8 @@ if ($action == 'previewdatanorm' && $id > 0) {
                     'copper_surcharge' => $copperSurchargeForPrice,
                     'existing_product_id' => $existingProductId,
                     'action' => $productAction,
-                    'new_ref' => 'NEW-'.$supplierPrefix.'-'.$datanorm->article_number
+                    'new_ref' => 'NEW-'.$supplierPrefix.'-'.$datanorm->article_number,
+                    'supplier_alternatives' => $supplierAlternatives
                 );
             }
         }
@@ -1723,6 +1954,117 @@ if ($action == 'edit' && $import->id > 0) {
             print '<a href="'.$_SERVER['PHP_SELF'].'?action=removeproduct&line_id='.$line->id.'&id='.$import->id.'&token='.newToken().'" class="button buttongen">';
             print '<i class="fas fa-times"></i>';
             print '</a>';
+
+            // Check for missing supplier prices from other catalogs
+            if ($import->fk_soc > 0 && getDolGlobalString('IMPORTZUGFERD_DATANORM_SEARCH_ALL')) {
+                // Get existing supplier prices for this product
+                $sqlExistingPrices = "SELECT fk_soc FROM ".MAIN_DB_PREFIX."product_fournisseur_price";
+                $sqlExistingPrices .= " WHERE fk_product = ".(int)$line->fk_product;
+                $resExistingPrices = $db->query($sqlExistingPrices);
+                $existingSupplierIds = array();
+                if ($resExistingPrices) {
+                    while ($objPrice = $db->fetch_object($resExistingPrices)) {
+                        $existingSupplierIds[$objPrice->fk_soc] = true;
+                    }
+                }
+
+                // Get current supplier price for comparison
+                $currentSupplierPrice = 0;
+                if (isset($existingSupplierIds[$import->fk_soc])) {
+                    $sqlCurrentPrice = "SELECT price FROM ".MAIN_DB_PREFIX."product_fournisseur_price";
+                    $sqlCurrentPrice .= " WHERE fk_product = ".(int)$line->fk_product;
+                    $sqlCurrentPrice .= " AND fk_soc = ".(int)$import->fk_soc;
+                    $sqlCurrentPrice .= " ORDER BY unitprice ASC LIMIT 1";
+                    $resCurrentPrice = $db->query($sqlCurrentPrice);
+                    if ($resCurrentPrice && $db->num_rows($resCurrentPrice) > 0) {
+                        $objCurrentPrice = $db->fetch_object($resCurrentPrice);
+                        $currentSupplierPrice = $objCurrentPrice->price;
+                    }
+                }
+
+                // Search in all Datanorm catalogs for this article
+                $datanormSearch = new Datanorm($db);
+                $searchRef = !empty($line->supplier_ref) ? $line->supplier_ref : (!empty($line->ean) ? $line->ean : '');
+                if (!empty($searchRef)) {
+                    $allCatalogResults = $datanormSearch->searchByArticleNumber($searchRef, $import->fk_soc, true, 10);
+
+                    // Filter to only show suppliers without existing price
+                    $missingSuppliers = array();
+                    foreach ($allCatalogResults as $catalogResult) {
+                        if (!isset($existingSupplierIds[$catalogResult['fk_soc']])) {
+                            // Load supplier name
+                            $altSupplier = new Societe($db);
+                            $altSupplier->fetch($catalogResult['fk_soc']);
+
+                            $altPurchasePrice = $catalogResult['price'];
+                            if ($catalogResult['price_unit'] > 1) {
+                                $altPurchasePrice = $catalogResult['price'] / $catalogResult['price_unit'];
+                            }
+
+                            $missingSuppliers[] = array(
+                                'datanorm_id' => $catalogResult['id'],
+                                'fk_soc' => $catalogResult['fk_soc'],
+                                'supplier_name' => $altSupplier->name,
+                                'article_number' => $catalogResult['article_number'],
+                                'price' => $catalogResult['price'],
+                                'price_unit' => $catalogResult['price_unit'],
+                                'purchase_price' => $altPurchasePrice,
+                                'ean' => $catalogResult['ean'],
+                            );
+                        }
+                    }
+
+                    // Show missing suppliers with checkboxes
+                    if (!empty($missingSuppliers)) {
+                        print '<div style="margin-top: 8px; padding: 8px; background-color: #fcf8e3; border: 1px solid #faebcc; border-radius: 4px; font-size: 0.85em;">';
+                        print '<div style="font-weight: bold; color: #8a6d3b; margin-bottom: 5px;">';
+                        print '<i class="fas fa-plus-circle"></i> '.$langs->trans('MissingSupplierPrices');
+                        print '</div>';
+                        print '<form method="POST" action="'.$_SERVER['PHP_SELF'].'" style="margin: 0;">';
+                        print '<input type="hidden" name="token" value="'.newToken().'">';
+                        print '<input type="hidden" name="action" value="addmissingprices">';
+                        print '<input type="hidden" name="id" value="'.$import->id.'">';
+                        print '<input type="hidden" name="fk_product" value="'.$line->fk_product.'">';
+
+                        foreach ($missingSuppliers as $missing) {
+                            $priceDiff = 0;
+                            $priceDiffPercent = 0;
+                            $diffHtml = '';
+
+                            if ($currentSupplierPrice > 0) {
+                                $priceDiff = $missing['purchase_price'] - $currentSupplierPrice;
+                                $priceDiffPercent = ($priceDiff / $currentSupplierPrice) * 100;
+
+                                if ($priceDiff < 0) {
+                                    $diffHtml = '<span style="color: #5cb85c;"><i class="fas fa-arrow-down"></i> '.number_format(abs($priceDiffPercent), 1).'%</span>';
+                                } elseif ($priceDiff > 0) {
+                                    $diffHtml = '<span style="color: #d9534f;"><i class="fas fa-arrow-up"></i> +'.number_format($priceDiffPercent, 1).'%</span>';
+                                } else {
+                                    $diffHtml = '<span class="opacitymedium">=</span>';
+                                }
+                            }
+
+                            print '<div style="padding: 3px 0;">';
+                            print '<label style="cursor: pointer;">';
+                            print '<input type="checkbox" name="add_supplier_prices['.$missing['fk_soc'].']" value="'.$missing['datanorm_id'].'" style="margin-right: 5px;">';
+                            print '<strong>'.dol_escape_htmltag($missing['supplier_name']).'</strong>';
+                            print ' <code style="font-size: 0.9em;">'.dol_escape_htmltag($missing['article_number']).'</code>';
+                            print ' @ <strong>'.price($missing['purchase_price']).'</strong>';
+                            if (!empty($diffHtml)) {
+                                print ' '.$diffHtml;
+                            }
+                            print '</label>';
+                            print '</div>';
+                        }
+
+                        print '<button type="submit" class="button buttongen small" style="margin-top: 5px;">';
+                        print '<i class="fas fa-plus"></i> '.$langs->trans('AddSelectedPrices');
+                        print '</button>';
+                        print '</form>';
+                        print '</div>';
+                    }
+                }
+            }
         } else {
             // Product selection form
             print '<form method="POST" action="'.$_SERVER['PHP_SELF'].'" class="inline-block">';
@@ -1953,6 +2295,123 @@ if ($action == 'edit' && $import->id > 0) {
             }
             print '</td>';
             print '</tr>';
+
+            // Show supplier alternatives if available (more than 1 supplier found)
+            if (!empty($match['supplier_alternatives']) && count($match['supplier_alternatives']) > 1) {
+                print '<tr class="oddeven" style="background-color: #f9f9f9;">';
+                print '<td></td>'; // Empty checkbox column
+                print '<td colspan="7" style="padding: 10px;">';
+                print '<div style="background-color: #fff; border: 1px solid #ddd; border-radius: 5px; padding: 10px;">';
+                print '<div style="font-weight: bold; margin-bottom: 8px; color: #555;">';
+                print '<i class="fas fa-store-alt paddingright"></i>'.$langs->trans('SupplierAlternatives');
+                print ' <span class="badge" style="background-color: #5bc0de;">'.count($match['supplier_alternatives']).' '.$langs->trans('Suppliers').'</span>';
+                print '</div>';
+
+                print '<table class="noborder" style="width: 100%; font-size: 0.9em;">';
+                print '<tr style="background-color: #f5f5f5;">';
+                print '<th class="center" style="width: 40px;">'.$langs->trans('Select').'</th>';
+                print '<th>'.$langs->trans('Supplier').'</th>';
+                print '<th>'.$langs->trans('SupplierRef').'</th>';
+                print '<th>'.$langs->trans('EAN').'</th>';
+                print '<th>'.$langs->trans('ManufacturerRef').'</th>';
+                print '<th class="right">'.$langs->trans('UnitPrice').'</th>';
+                print '<th class="right">'.$langs->trans('Difference').'</th>';
+                print '</tr>';
+
+                $lowestPrice = PHP_FLOAT_MAX;
+                foreach ($match['supplier_alternatives'] as $alt) {
+                    if ($alt['purchase_price'] < $lowestPrice) {
+                        $lowestPrice = $alt['purchase_price'];
+                    }
+                }
+
+                foreach ($match['supplier_alternatives'] as $altIdx => $alt) {
+                    $isInvoiceSupplier = $alt['is_invoice_supplier'];
+                    $isCheapest = ($alt['purchase_price'] == $lowestPrice);
+                    $rowStyle = '';
+                    if ($isInvoiceSupplier) {
+                        $rowStyle = 'background-color: #d9edf7;'; // Blue for invoice supplier
+                    } elseif ($isCheapest) {
+                        $rowStyle = 'background-color: #dff0d8;'; // Green for cheapest
+                    }
+
+                    print '<tr style="'.$rowStyle.'">';
+
+                    // Checkbox for selecting this supplier as purchase source
+                    print '<td class="center">';
+                    $checkboxName = 'supplier_prices['.$match['line_id'].']['.$alt['fk_soc'].']';
+                    $checked = $isInvoiceSupplier ? ' checked' : '';
+                    print '<input type="checkbox" name="'.$checkboxName.'" value="'.$alt['datanorm_id'].'"'.$checked.' title="'.$langs->trans('AddAsPurchasePrice').'">';
+                    print '</td>';
+
+                    // Supplier name
+                    print '<td>';
+                    print '<strong>'.dol_escape_htmltag($alt['supplier_name']).'</strong>';
+                    if ($isInvoiceSupplier) {
+                        print ' <span class="badge" style="background-color: #337ab7; font-size: 0.75em;"><i class="fas fa-file-invoice"></i></span>';
+                    }
+                    if ($isCheapest) {
+                        print ' <span class="badge" style="background-color: #5cb85c; font-size: 0.75em;"><i class="fas fa-tag"></i></span>';
+                    }
+                    print '</td>';
+
+                    // Supplier article number
+                    print '<td><code>'.dol_escape_htmltag($alt['article_number']).'</code></td>';
+
+                    // EAN
+                    print '<td>';
+                    if (!empty($alt['ean'])) {
+                        print '<span class="small">'.dol_escape_htmltag($alt['ean']).'</span>';
+                    } else {
+                        print '<span class="opacitymedium">-</span>';
+                    }
+                    print '</td>';
+
+                    // Manufacturer ref
+                    print '<td>';
+                    if (!empty($alt['manufacturer_ref'])) {
+                        print '<span class="small">'.dol_escape_htmltag($alt['manufacturer_ref']).'</span>';
+                    } else {
+                        print '<span class="opacitymedium">-</span>';
+                    }
+                    print '</td>';
+
+                    // Price
+                    print '<td class="right nowraponall">';
+                    if ($alt['price_unit'] > 1) {
+                        print '<span class="small" style="color: #666;">'.price($alt['price']).'/'.$alt['price_unit'].'</span><br>';
+                    }
+                    print '<strong>'.price($alt['purchase_price']).'</strong>';
+                    print '</td>';
+
+                    // Difference from invoice supplier price
+                    print '<td class="right nowraponall">';
+                    if (!$isInvoiceSupplier && isset($match['purchase_price'])) {
+                        $diff = $alt['purchase_price'] - $match['purchase_price'];
+                        $diffPercent = ($match['purchase_price'] > 0) ? ($diff / $match['purchase_price'] * 100) : 0;
+                        if ($diff < 0) {
+                            print '<span style="color: #5cb85c;"><i class="fas fa-arrow-down"></i> '.price(abs($diff)).' ('.number_format(abs($diffPercent), 1).'%)</span>';
+                        } elseif ($diff > 0) {
+                            print '<span style="color: #d9534f;"><i class="fas fa-arrow-up"></i> +'.price($diff).' (+'.number_format($diffPercent, 1).'%)</span>';
+                        } else {
+                            print '<span class="opacitymedium">=</span>';
+                        }
+                    } else {
+                        print '<span class="opacitymedium">-</span>';
+                    }
+                    print '</td>';
+
+                    print '</tr>';
+                }
+
+                print '</table>';
+                print '<div class="small opacitymedium" style="margin-top: 5px;">';
+                print '<i class="fas fa-info-circle"></i> '.$langs->trans('SelectSuppliersForPurchasePrices');
+                print '</div>';
+                print '</div>';
+                print '</td>';
+                print '</tr>';
+            }
         }
 
         print '</table>';

langs/de_DE/importzugferd.lang

@@ -472,3 +472,17 @@ BoxNewProductsToReview = Neue Produkte prüfen
 NewProductsToReview = Neue Produkte prüfen
 NoNewProductsToReview = Keine neuen Produkte zur Überprüfung
 ShowAll = Alle anzeigen
+
+#
+# Multi-Supplier Alternatives
+#
+SupplierAlternatives = Lieferanten-Alternativen
+Suppliers = Lieferanten
+AddAsPurchasePrice = Als Einkaufspreis hinzufügen
+SelectSuppliersForPurchasePrices = Wählen Sie die Lieferanten aus, bei denen ein Einkaufspreis hinterlegt werden soll
+ManufacturerRef = Hersteller-Art.Nr.
+MissingSupplierPrices = Fehlende Lieferantenpreise
+AddSelectedPrices = Ausgewählte hinzufügen
+SupplierPricesAdded = %s Lieferantenpreise hinzugefügt
+CheaperBy = %s%% günstiger
+MoreExpensiveBy = %s%% teurer

langs/en_US/importzugferd.lang

@@ -403,3 +403,17 @@ BoxNewProductsToReview = New Products to Review
 NewProductsToReview = New Products to Review
 NoNewProductsToReview = No new products to review
 ShowAll = Show all
+
+#
+# Multi-Supplier Alternatives
+#
+SupplierAlternatives = Supplier Alternatives
+Suppliers = Suppliers
+AddAsPurchasePrice = Add as Purchase Price
+SelectSuppliersForPurchasePrices = Select suppliers where a purchase price should be stored
+ManufacturerRef = Manufacturer Ref
+MissingSupplierPrices = Missing Supplier Prices
+AddSelectedPrices = Add Selected
+SupplierPricesAdded = %s supplier prices added
+CheaperBy = %s%% cheaper
+MoreExpensiveBy = %s%% more expensive