Diagnosis
You tried to set the "Accept error in city file check as warning" flagwith the function module ADDR_ACCEPT_REG_DATA_ERROR.

System Response
This is not possible because the "Dialog allowed in city file check"flag was previously set (by the function moduleADDR_SET_DIALOG_FOR_REG_DATA).
In this case (dialog allowed) the user is always asked in a dialog boxwhether he or she wants to accept data despite errors. Calling thisfunction module would make acceptance of data with errors in dialogimpossible.

Procedure
The flag cannot be set in the dialog case.