Error in Import outbound IF: P/N not found in any customer contract

QError in Import outbound IF: P/N not found in any customer contract

This may happen for 2 cases:

WisE P/N was removed/ changed in the customer contract master (inactive or buildout status does not cause this error). To resolve it, please add the P/N back to the customer contract master.
Some data was changed in Import WMS by an irregular operation. Please check with the Import WMS team to find the cause.