We have a requirement to initiate approval in Expense module based on a Username selected on a DFF?

Summary:

We have a requirement to initiate approval for a username selected on a DFF in Expense reports and Cash Advances.

Example: If in Expense Reports Approver Username DFF value is John. Expense Reports should initiate for approval of John.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):