SAP Message 3G436 - Error at INSERT in table PPDHD: DOCNUM = &1 is already available

Diagnosis An error occurred when inserting in the database table PPDHD. A recordwith the key DOCNUM = &V1& should be inserted. However, a record withthe same key already exists. It is possible that the number range status of the number range objectHRPP_PDOC intervall 01 was reset so that the numbers already assignedare now retrieved by the system. System Response The document cannot be created. The system terminates processing of theposting run. Procedure Correct the number range status of the number range object HRPP_PDOC.