We have a requirement where in the incoming file has say some 50 fields. We need to do a validation check in mapping. Suppose say there is a empty value for any one of the fields then we need to raise a alert message and not processs the file further. The generated error message should be sent back to the same location from where the file is picked. I know that we can raise alerts but the requirement is such that they dont need alerts and just need a message to be sent back. Can someone please help on the same. Will a UDF work . Inputs would be appreciated.