SAP Message 6A791 - Reminder procedure &1 for rent adjustment not recognized

Diagnosis
In the master data of the current rental agreement, you have specifiedthat a reminder is to be sent for any rent adjustments that have notbeen approved using dunning procedure &V1&. However, the parameters ofthis dunning procedure have not yet been defined in Customizing.

System Response
The dunning procedure cannot be carried out.

Procedure
Maintain the parameters of dunning procedure &V1& in Customizing.

Procedure for System Administration
The dunning procedures for rent adjustment are defined in table TIVM7.