Failing to insert new item in database(db.saveCHanges fails)

Question

at the line db.SaveChanges(); of the execution. I get the following error.

Note: I am performing an insert.

ERROR :

Cannot insert duplicate key row in object 'dbo.ProductVariant' with unique index 'ProductVarioant_Barcode'.The statement has been terminated.

Answer 1

Error indicates that you are trying to insert a duplicate value inside Barcode column of ProductVariant table. While there is an unique constraint on ProductVariant.Barcode.