Diagnosis
You cannot create a second change status for a process building block.

Procedure
INCLUDE RMS_GEN_ADMIN OBJECT DOKU ID TX

Procedure for System Administration
In the CL_PPELIPOB_CNTL=>PNPOB_MAINT method, you attempted to create asecond change status for a process building block. This is notpossible. Check the local method LCL_PNPOB=>BUFFER_CHANGE.