Message SAP X4227 - No checklist was found for item &1

Diagnosis
No checklist was found during the processing of item &V1& for orderV2. this is the item with material v3 in planning plant v4. sincechecklists are generated, if no checklist is delivered from the non-SAPsystem, this error should not occur.

System Response
Processing of the item is terminated.

Procedure
Contact SAP Support.