SAP Message 2B009 - Could not generate new TMS background process number

Diagnosis
Transport Management System (TMS) has its own system for assigningbackground job numbers. Each scheduled job is assigned its own number,regardless of whether it is periodic. You can see this number in thename of the background process.
An unexpected database error occurred while the next number was beinggenerated.

System Response
The job was not scheduled.

Procedure
Analyze the database for errors.