Complex flat file issue
I have a vendor that cannot customize a flat file to include any kind of variable data to determine the import period. The best they can manage is give me two trial balance amount columns- current month and previous month- and I can pick which to use based on a custom parameter to tell me the close month.
So first, am I able to determine which amount to use (column 9 or 10) based on a variable vs the current date- when current month = 5 and month end = 4, use column 9, else column 10?
Second how can I create a datakey for time using these parameters? I can't find any documentation on it.
Appreciate the advice. I know this isn't the best way but I've been painted into this corner against my will....

