You can back off a set of dynamically activated service items, if you need to. This might be necessary if, for example, a problem is encountered with a dynamically activated service item or if a particular service item is no longer necessary.

F OMVS,DEACTIVATE=SERVICE

Only the service items that were activated when F OMVS,ACTIVATE=SERVICE was last issued are backed off. You will see a list of service items to be deactivated and you will be asked whether the deactivation should proceed.