Method execute () 

With execute(), the mapping requests flagged by method addMapping() are executed, that is function module UKM_GET_KEY_MAPPINGS is started.

After calling the method, the flagged mapping requests have been processed, that is to execute the same mapping requests again, they must be flagged again with addMapping().

After the method call, the messages sent from the RFC function module are read with method getMessages(). They are retained until execute() is called again. You can get the results of the mapping call with getResult().