I have one entity but mulitple DBAs. How can I send invoices for the different DBAs. When I make a DBA change on customized invoice it changes all the templates.

If you have QBO Plus, you can set up each DBA as a Location, and set up each Location with the DBA's name, address, tel, which will print on the invoice, after you select the Location on the invoice

For those who find this thread, there is now a definitive and positive answer. First, your QBO subscription must be QBO Plus or Advanced. Second, you must turn on location tracking in the advanced section of company settings. Finally, you must create a location for each DBA (I changed the reference name for locations to divisions). When you create a location, you are given the option of setting a number of options for that location including company name, address, phone number, website, etc. Once you do this and set the location when you create an invoice, then the information for that location will show in those corresponding fields in the invoice template. Combine this with different templates for the different DBAs and you can have different logos, formats, and designs for the invoices. You just need to select both the correct location and template for each invoice. It only took about 10 years, but this issue is finally resolved.