Prior to each call of an RFC-capable function module, the "RFC callback" mechanism is now deactivated.

This is primarily relevant in a multi-back-end environment, in particular in systems with a version earlier than "SAP NetWeaverAS for ABAP 7.3, enhancement package 1" and in systems in which the "callback protection" cannot be turned on globally with an SAP profile parameter.

For more information on secure RFC communication, see the SAP note 2008727.