Deleting RIB Rules 
Using transaction FMRBDEL, you can delete rules defined for Revenues Increasing the Budget which you no longer need. It is possible to delete RIB rules based on revenue cover groups along with RIB objects in a single mass run.
You can only delete RIB rules for which no RIB documents have been created. If you have already increased the budget of the receiving expenditure budget addresses using these RIB rules, you must first reverse these RIB documents before you can delete the RIB rules.
In order to delete RIB rules, proceed as follows:
Read the program documentation and call up FMRBDEL via the SAP Easy Access menu under
Specify the selection options in the initial screen. For RIB rules based on revenue cover groups, restrict your selection of revenue cover groups or RIB source addresses of revenue cover groups.
In the field RIB object activation status , you can enter a desired value for the RIB rule activation status (“A” for active objects, “F” for frozen objects, “I” for inactive objects) if you want to restrict the deletion to RIB rules with this specified activation status.
If necessary, further restrict the deletion to RIB rules using a specific RIB calculation formula.
Specify whether you want to first carry out a test run and the screen layout to be used.
Run the program.
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When deleting RIB rules based on revenue cover groups, only the RIB rules defined for the revenue cover group are deleted. The revenue cover groups themselves are not affected.
When you delete RIB rules with call procedure, these RIB rules are automatically removed as contributors from the member lists of the automatic cover groups to which they were assigned.
The selected RIB rules have been deleted.