SAP Message V4298 - Delivery plan &1 not used (vendor number not suitable)

Diagnosis
The following scheduling agreement meets the selection criteria givenin the IDoc:
V1 v2
The vendor number given in the IDoc is:
V3
The scheduling agreement is not taken into consideration as the vendornumber given in the IDoc is not defined in the customer master or inthe corresponding sales area.

System Response
This message is only for information. If other scheduling agreementsare found that can be used, these are used. If there are no schedulingagreements that can be used, processing is terminated.

Procedure
Check in the customer master whether the number defined there (numberfor debitor - sales data) has been correctly maintained or has beenmaintained in the required sales area. Correct the data if necessaryand process the IDoc again.