Hi mp_np,
Thanks. So I'm guessing the field formula has a different execution context than a formula column. Maybe by way of followup we should just put a small note in the doc or group the functions that can only run in a field formula together. In any case, mystery solved, and its working great.
Mockaroo is awesome, BTW. Its the easy to use yet powerful data generator we have been wishing for.
Thanks,
Cameron
