Multiple Business Units in same ACH file

Good morning,

We are exploring the idea of using one bank account for multiple AP business units. One issue we are running into is that when you produce an ACH file containing the multiple business units the company name in the ACH file only shows one of the business units that is contained in the file. Has any one tried doing this in their organization or would this have to be a customized ACH file in order for the multiple company names to show up?

Our fear is that if Business Unit AAA and Business Unit BBB payments are made, only Business Unit AAA will show on the ACH file and when a business or individual logs in to their banking platform to view the payment, they will see Business Unit AAA in the description instead of Business Unit BBB, which they were paid from.