SAP Message RP398 - Entry in field number not permitted

Diagnosis An entry is only allowed in field P0021-OBJPS (number or child number)if the T591A-OBJRQ indicator is set. This is not the case with thesubtype entered. Procedure Delete the entry from field P0021-OBJPS or set the "Objectidentification for subtypes permitted" (T591-OBJRQ) indicator in thetable Subtype Characteristics (T591A) for the required Subtype.