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Attach marked campaign proofs to the right creative task.
Your maker gets the marked PDF and a clear fix list on the right task, with the reviewed version named.
Put the revised campaign proof and prior fixes on one task.
Your reviewer can find the new proof beside the earlier version and the fixes still open, right on the task.
Put revised campaign creative back before its reviewer.
Your reviewer gets a task ready to review, with the replacement proof and its version named in a comment.