Hi Keith,
In attachment zip, it has only the method of fiscper3, can you please share the complete code by going to transformation > extras > display activated program and search for field gd_fiscper3 and there should be some read statement / select statement where the data is being read and dumped in to internal table , since it fiscal year /period I believe there would be some logic based on date..
So please share the complete code
Thanks,
Siva