Message SAP X4208 - Error during conversion of planned order &1 : Check failed

Diagnosis If the planned order conversion is triggered from SAP APO, a check mustbe made on the ECC side to see if it is possible for the planned orderto be converted. This check has failed. System Response The conversion of the planned order &V1& is terminated. Procedure To find out the cause of this, you can try to convert the planned orderin SAP ECC.