PO save errors when trying to use some of the sample order templates

How to reproduce:

1. Go to folio-snapshot and log on with diku_admin
2. Go to Settings/Orders/Templates and check that the 5 sample templates are there
3. Go to Orders app
4. Try to create a new PO with each of the 5 templates. For some of them, you may need to fill in required data like vendor or Renewal interval/Renewal date
5. Save POL

Expected: As long as I have filled in all required fields after assigning a template, the PO should be successfully saved

Actual: I can save the PO when using the Amazon book orders and Our dissertations templates. I cannot save POs created with the other 3 templates, even when the required fields are filled in. And the error message is not clear on what is blocking the Save/Create.

See attached video

WAIT - I think I figured it out!
For the middle 3 templates, there is an acq unit of main, but diku_admin user was not part of the main acq unit. When I delete the blank acq unit or when I add diku_admin user to the main acq unit, I can save the PO. So.... to fix this could we either:
1. Add diku_admin as a user in the main acq unit of the sample data
and/or
2. Remove the acq unit data from the 3 sample templates
and/or
3. Have the error message say something about invalid or missing acq unit, or user is not part of the templated acq unit, or something like that?