SAP Message 61251 - Purchase requisition &1 has not delivery date

Diagnosis
The purchase requisition has not delivery date.

System Response
A purchase requisition without a delivery date is an inconsistency. Theabsence of a date causes problems in MRP.

Procedure
Enter a delivery date or delete the purchase requisition. You shouldalso check for the cause of the inconsistent purchase requisition tosolve this problem.