SAP Message XR031 - Account group exchange completed; See message long text (in SAP R/3)

System Response
Changes to the account group were successful.

Procedure
Because an account group change is a critical change, general data aswell as business area data for all the customer's business areas must bechecked manually to ensure it is correct.
You must do this in change mode (compare with behavior of the R/3customer master after changing the account group).
If necessary, all business partner data must be sent to R/3. You can useCRM transactions CRMM_BUPA_MAP or CRMM_BUPA_SEND to do this.