We are using the datasource 2LIS_04_P_COMP
1) We append a field into MCCOMP and MCCOMPB, but that field doesn't appear in the pool of communication structure fields. Therefore, we cannot move from the pool (right side) to extract structure (left side)
2) We need to add a field into MCCOMP, as we need to capture Delta for this field. Is there any user exit that can populate value for this structure?