diff --git a/Gremlin/GremlinData/DBClasses/DbHelper.cs b/Gremlin/GremlinData/DBClasses/DbHelper.cs
index 2cc671c..f1ceb7d 100644
--- a/Gremlin/GremlinData/DBClasses/DbHelper.cs
+++ b/Gremlin/GremlinData/DBClasses/DbHelper.cs
@@ -1060,7 +1060,7 @@ namespace Gremlin.GremlinData.DBClasses
                         CoverletterText = fields[5],
                         Notes = fields[6],
                     };
-                    ImportedCD.Product = new();
+                    ImportedCD.Products = new();
                     ImportedCD.Supplier = new();
                     ImportedCD.Supplier.AccountName = fields[2] is "" or "RB" ? "Agilent Technologies" : fields[2];
                     MetaDataSetter.ForImport(ImportedCD, "Importer", "Initial Importer by CD-ImporterFomCsv");
@@ -1117,12 +1117,12 @@ namespace Gremlin.GremlinData.DBClasses
                     foreach (CustomDescription CD in CDsReadFromFile)
                     {
                         //Skip Desciptions, if it has been already imported above (as part from 3PP)
-                        if (thirdPartyProductsFromImportedCDs.Contains(CD.Product)) continue;
+                        if (thirdPartyProductsFromImportedCDs.Intersect(CD.Products).Any()) continue;
 
                         //Establish EF Reference. If no PN/Opt found, then skip this custom description.
                         //CD.Product = GetProduct(db, CD.ProductNumber, CD.OptionNumber);         //ResolveXY-functions return null, if no match is found in db.
-                        CD.Product = productsInDb.Find(p => p.ProductNumber == CD.ProductNumber && p.OptionNumber == CD.OptionNumber);
-                        if (CD.Product == null)
+                        CD.Products = productsInDb.Where(product => product.ProductNumber == CD.ProductNumber && product.OptionNumber == CD.OptionNumber).ToList();
+                        if (CD.Products == null)
                         {
                             CDsWithoutEFReferences.Add(CD);
                             continue;
@@ -1206,7 +1206,7 @@ namespace Gremlin.GremlinData.DBClasses
                     importedCD.CoverletterText = stringsRead.ElementAt(5);
 
                     importedCDs.Add(importedCD);
-                    if (importedCDs.Count >= 1200 && importedCDs.Count % 100 == 0) MessageBox.Show(importedCDs.Count.ToString());     //DEBUGGING
+                    //if (importedCDs.Count >= 1200 && importedCDs.Count % 100 == 0) MessageBox.Show(importedCDs.Count.ToString());     //DEBUGGING
 
                 }
             }
@@ -1260,11 +1260,12 @@ namespace Gremlin.GremlinData.DBClasses
                 foreach (CustomDescription CD in importedCDs)
                 {
                     //Skip Desciptions, if it has been already imported above (as part from 3PP)
-                    if (thirdPartyProductsFromImportedCDs.Contains(CD.Product)) continue;
+                    if (thirdPartyProductsFromImportedCDs.Intersect(CD.Products).Any()) continue;
 
                     //Establish EF Reference. If no PN/Opt found, then skip this custom description.
-                    CD.Product = ResolveProduct(db, CD.ProductNumber, CD.OptionNumber);         //ResolveXY-functions return null, if no match is found in db.
-                    if (CD.Product == null)
+                    CD.Products.Add(ResolveProduct(db, CD.ProductNumber, CD.OptionNumber));         //ResolveXY-functions return null, if no match is found in db.
+
+                    if (CD.Products == null)
                     {
                         CDsWithoutEFReferences.Add(CD);
                         continue;
diff --git a/Gremlin/GremlinData/DBClasses/GenericImporter.cs b/Gremlin/GremlinData/DBClasses/GenericImporter.cs
index 8ed28b4..cdd45fc 100644
--- a/Gremlin/GremlinData/DBClasses/GenericImporter.cs
+++ b/Gremlin/GremlinData/DBClasses/GenericImporter.cs
@@ -321,7 +321,7 @@ namespace Gremlin.GremlinData.DBClasses
                         DataValidUntil = FarInTheFuture,
                         DataVersionComment = "Initial Importer by CD-ImporterFomCsv",
                     };
-                    ImportedCD.Product = new();
+                    ImportedCD.Products = new();
                     ImportedCD.Supplier = new();
                     ImportedCD.Supplier.AccountName = fields[2] is "" or "RB" ? "Agilent Technologies" : fields[2];
                     ImportedCD.DataCreationDate = ImportedCD.DataValidFrom = ImportedCD.DataModificationDate = DateTime.Now;
@@ -378,12 +378,12 @@ namespace Gremlin.GremlinData.DBClasses
                     foreach (CustomDescription CD in CDsReadFromFile)
                     {
                         //Skip Desciptions, if it has been already imported above (as part from 3PP)
-                        if (thirdPartyProductsFromImportedCDs.Contains(CD.Product)) continue;
-
+                        if (thirdPartyProductsFromImportedCDs.Intersect(CD.Products).Any()) continue;
+                        
                         //Establish EF Reference. If no PN/Opt found, then skip this custom description.
                         //CD.Product = GetProduct(db, CD.ProductNumber, CD.OptionNumber);         //ResolveXY-functions return null, if no match is found in db.
-                        CD.Product = productsInDb.Find(p => p.ProductNumber == CD.ProductNumber && p.OptionNumber == CD.OptionNumber);
-                        if (CD.Product == null)
+                        CD.Products = productsInDb.Where(product => product.ProductNumber == CD.ProductNumber && product.OptionNumber == CD.OptionNumber).ToList();
+                        if (CD.Products == null)
                         {
                             CDsWithoutEFReferences.Add(CD);
                             continue;