Message SAP /BON/AG_MAINTENANCE039 - You can no longer make changes to the scale

Diagnosis
You have created or deleted scale lines after generating conditions.Whether or not it is possible to change a condition record and its scaledepends on the status of the rebate agreement and the status of thecondition record.

System Response
The system does not allow you to change the condition record and scale.

Procedure
Contact your system administrator.

Procedure for System Administration
For more information about changing rebate agreements, see SAP Library.