I have a custom field that is referenced by an Approval process, long since deactivated. However when I try to delete the Approval process, I get:
Cannot Modify Active/Once Active Approval Process Definition Once an approval process has been activated, you cannot add or remove steps. Please create a new approval process from this one for modification. You may only delete an approval process that has no data records associated with it.
I did find some records by using Setup > Mass Transfer Approval Requests where I reassigned a bunch of approval requests to myself and then approved them (this is a test environment).
But it did not change the result - I still get the same error when trying to delete the approval process. Ideas?