SAP Message S)026 - Planned order(s) could not be updated

Diagnosis
The order scheduling had to be terminated as one or more planned orderscould not be updated. The data records are locked or in processing.

Procedure
Try the scheduling once more. It is possible that another user isscheduling the same planned orders, or that the planned order data isinconsistent. If problems persist, it is possibly due to a systemerror.