Upon converting an idea to a project, the following error is received:
"Department Cannot be changed to a different entity after financial plans have been created"

Departments need to be associated with Locations.

Release:
Component: PPMPRD

Proceed to associate departments to locations.
 

https://comm.support.ca.com/kb/Why-are-new-departments-missing-from-the-Department-Browse-Lookup/kb000016903