Attach invoices, collect vendor forms, request missing proof. Every one is ready to run, and you can adjust it in plain language.
Verify the proof revision and link it on the review task.
Your reviewer sees the current image or PDF proof link and revision on the task before deciding.
Keep the current proof clear in each approval handoff.
Your reviewers get a clear task for the current proof. They know what decision to make and when it is due.