--- title: "Why am I getting a \"Product Class: Product Class is ambiguous\" error?" description: To correct the error and proceed with the import, you should log into Configuration Manager and review your Product Class to correct any duplicate Product Class Descriptions. --- [Skip to content](https://hub.acctivate.com/articles/product-class-is-ambiguous-error#main-content) [Go to Customer Portal](https://hub.acctivate.com/tickets?hsLang=en) ![Acctivate - A CAI Solution](https://hub.acctivate.com/hubfs/Images/Logos/acctivate-cai-logo-svg.svg) - [Knowledge Base](https://hub.acctivate.com/articles) Open main navigation Close main navigation - [Knowledge Base](https://hub.acctivate.com/articles) - [Go to Customer Portal](https://hub.acctivate.com/tickets) - [Support Resources / Create Ticket](https://acctivate.com/support) [Support Resources / Create Ticket](https://acctivate.com/support) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. 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As your business grows and you have the need for more and more product classes, the list can grow to a point that you may have accidentally created a duplicate Product Class.  The database must have a unique identifier to complete the import.  Acctivate uses Class ID as the unique identifier for Product Class and will prevent the user from creating a duplicate record, while Description is not required to be unique it can create a problem during a data import.  If your Product Class list has duplicate descriptions you may receive the following error during a product import. ![](https://help.acctivate.com/wp-content/uploads/AmbiguousClass.jpg) To correct the error and proceed with the import, you should log into Configuration Manager -\> Inventory -\> Product Class and review your Product Class to correct any duplicate Product Class Descriptions. 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