Hi,
You can use the entity OwningBusinessUnit field into the form, i would suggest you to use the following workaround:
1. Create new entity N:1 relationship with Business Unit entity, drag that field on Form and save Form
2. Create a new workflow that will run When a New Record is Created
or if Record is Assigned
3. Add Update Record Step, set the Business Unit field
with the Entity Owning Business Unit field
4. Enable Available to Run option As an on-demand process
5. Save workflow and activate it
6. In Advance Find or Entity List View, select all old entity records and click on
Run Workflow button and select the workflow "Update Business Unit Field on Form"
I hope this helps.
Jehanzeb Javeed
http://worldofdynamics.blogspot.com
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