SAP Message /ISDFPS/MM223 - MRP area &1 does not conform to naming conventions

Diagnosis
The MRP area ID &V1& does not conform to the agreed naming conventions.
The ID of the MRP area must have 10 characters. In addition,an MRP provisions area is identified by the suffix _P, andan MRP stock area is identified by the suffix _S.

System Response
You cannot create or change the specified MRP area.