Escalate late approvals, open follow-ups, remind reviewers. Every one is ready to run, and you can adjust it in plain language.
Send the AP lead undecided bills with receipt links before payment cutoffs.
Your AP lead gets the receipt link and deadline in a private chat. The original bill shows the escalation too.
Send one bill-linked reminder to the next approver before cutoff.
Your next approver gets a reminder before the payment cutoff, with the follow-up recorded on the bill.