SAP Message 1B403 - No number could be determined after creation of the interval table

Diagnosis
A new interval table has just been set up. However, the system stillcannot determine an entry for application &v1& on the applicationserver &v2& with work process &v3&.
The return code of the sub-program is &v4&.
Return code 1 means that the current work process is a batch process,but that the entry in the interval table is intended for an onlineprocess, or vice versa. This error should not occur here.
Return code 2 means that an invalid method wasset for number assignment. Check your Customizing for this.

System Response
The system determines a random number; the required optimization doesnot take place.

Procedure
If there is no Customizing error, this probably involves an error inthe application.
Contact SAP and provide details or the error class and number.

Procedure for System Administration
For more detailed information on the context, refer to thedocumentation on the subject of "BCAPerformance When Posting Payment Items".