Approval routing that matches your policy, not a flat inbox.

Approval policy usually lives in a spreadsheet and a few peoples heads: under 1,000 dollars a manager signs off, over 25,000 dollars the CFO does, and everything in between depends on the cost center. Enforcing that by hand means invoices sit in a shared inbox until someone remembers to route them.

1. 1Webhook trigger starts the run when an invoice is ready for approval.
2. 2Condition block reads the amount and cost center from the invoice record.
3. 3Condition branches send the invoice down the tier its amount requires: auto-approve, manager, or executive.
4. 4Approval block posts to the right owner on Slack with the invoice detail and approve or reject buttons, and carries its own timeout set with `timeoutHours`.
5. 5On timeout or rejection, the Approval block routes down its escalation branch to the next tier, so nothing stalls indefinitely.
6. 6ERP block posts the approved invoice with the approver, timestamp, and any comment attached to the record.