Diagnosis
Planning material &V1& (plant &V2&), whichbelongs to material &V4&, the material that you are processing, hasbeen locked by user &V3&. The system has unsuccessfully attempted tolock this material.

System Response
To avoid further delaying your work, the system will terminate itsattempts to lock the material and will not execute an assignment check.

Procedure
Note that the operation you are processing has not been confirmed.Therefore, you should execute an assignment check(availability check) again.