No RFC authorization for function module

Hi Experts,

I am working on PI 7.3, doing a idoc to jdbc scenario by using the AEX(Advance Adapter Engine Extended).

I created Integrated Configuration, in tab "Inbound Processing" pointed IDoc_AAE sender channel etc...

While doing the configuration testing i am getting the below error "No RFC authorization for function module IDOCTYPE_READ_COMPLETE."

Messages fails in tRFC.

What can i do, to solve this problem?

Thanks & Regards

Stanislav