Pushing SNC parameter from ABAP(GRC 10.1) to EP 7.4

Hello Experts,

We are establishing SSO between GRC and EP . GRC 10.2 (SAP GUI) is the datasource for EP 7.4. User IDs being different in both the systems , we have implemented SNC parameter setup. If we goto SU01 of GRC system and search for a user ID, we get the SNC string from SNC tab. for Eg : p:INABRE@ASIAPACIFIC.XYZ.COM

Now this string has to be maintained in customized information of a user ID in portal as INABRE@ASIAPACIFIC.XYZ.COM.

Requesting to please suggest any method to achieve this . Thanking everyone for an early response.

Thanks,

Khyana Mohanty