Check for Duplicates will check the Customer PO entered on the sales transaction against all open and posted transactions for the customer. If the same Customer PO was used on another document, the Customer PO Inquiry window will pop-open to display all of the documents using the same Customer PO. Duplicates will be allowed. This Tweak will alert you if there are duplicates, but a duplicate Customer PO can still be used.
This Tweak does not require that a Customer PO be provided, so the Customer PO field can be blank.
Navigation: Tools >> Setup >> Company >> Setup GP PowerPack
Mark the box next to TWK-SOP: Customer PO – Check for Duplicates, then click DONE.
The feature will be enabled for the current user. Other users must restart their Dynamics GP client to enable this feature.
All SOP document types are affected when this feature is enabled. Customer PO Numbers will be checked for a Customer on all open and historical documents, for all SOP Types (Quotes, Orders, Invoices, etc).
Using SOP:Customer PO – Check for Duplicate
The Customer PO Inquiry window will open automatically after entering a Customer PO Number on Sales Transaction Entry, if the Customer PO Number has been used previously on another sales document.