SAP Message RM221 - Entry of actual data for material &1 with version &2 faulty

Diagnosis
The backflush could not be carried out successfully for productionversion &V2& of material &V1&.
If you want to postprocess the backflush, the problem is that thecomponents to be postprocessed could not be withdrawn as the originalwithdrawal error was not correced or a new withdrawal error hasoccurred.

System Response
The system could not carry out the posting.

Procedure
Check the entry parameters to be used for carrying out the backflush.
If you want to postprocess the backflush, check whether the componentsto be postprocessed can be posted. (Has the original withdrawal errorbeen corrected?)