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Architecture of authorization concepts
If RFC function modules are called via RFC connections (for example, from an RFC client program or another system), an authorization check is performed on authorization object S_RFC in the called system. This check checks the name of the function group to which the function module belongs. If this check fails, the system also checks the authorizations for the name of the function module. Configure this check with the auth/rfc_authority_check parameter.
Authorizations in SAP systems form the basis for Identity & Access Management. They enable users to access the applications they need to perform their activities. Since functional and organizational requirements are subject to change, SAP authorizations must be regularly checked and reworked. This is the only way to ensure that processes are mapped securely and completely correctly from a technical point of view.
Evaluate Permission Traces across Application Servers
For the transport of PFCG roles with their profiles there is also an SAP notice: Note 1380203. If you enter the correction, it is possible to use separate positions for the third and fourth digits of the generated profile name for the definition. In the SAP standard, the name of a generated profile is composed as follows, for example, if the System ID is ADG: T-AG#####. If your other source systems differ only in the second place of the system ID, the profile name does not indicate from which system the profiles originate.
The relevant authorization objects are then displayed in an ALV list and the documentation for the authorization object can be called up via the I in the Docu column. This documentation then displays much more detailed information about the respective authorization object as well as the defined fields.
For the assignment of existing roles, regular authorization workflows require a certain minimum of turnaround time, and not every approver is available at every go-live. With "Shortcut for SAP systems" you have options to assign urgently needed authorizations anyway and to additionally secure your go-live.
To learn how to do this, see Tip 27, "Define S_RFC permissions using usage data." However, such a cleanup of the privileges of your interface users cannot happen overnight.
The website www.sap-corner.de offers a lot of useful information about SAP authorizations.
You assign a reference user to a dialogue user by registering the reference user for additional rights in the SU01 transaction on the Roles tab in the Reference User field.