NACHA for Associated Bank

It’s a long shot but figured I would ask before we write one. Anyone got an EI for NACHA format for Associated Bank? Going to start shooting towards ACH AP

I would get their documents and compare it to Payment_US_ACH_Domestic

No bank should be cooking up another file format when a standard exists.

https://achdevguide.nacha.org/ach-file-details

You would think, but companies love tweaking things.