Advanced FeaturesUpdated May 21, 2026
Shopify Flow triggers
Seven Shopify Flow triggers for PO Flow events such as created, sent, approved, received, and returns; Pro only.
Shopify Flow triggers
Available on the Pro plan. PO Flow publishes seven triggers to Shopify Flow so you can build automations that respond to PO Flow events — for example, posting to Slack when a PO is approved or alerting your warehouse when stock is received.
Available triggers
- Purchase order created — fires when a new PO is saved.
- Purchase order sent — fires when a PO is emailed to a supplier or marked as sent.
- Purchase order approved — fires when an approval workflow completes successfully.
- Purchase order rejected — fires when an approval workflow ends in rejection.
- Stock received — fires when a receipt is confirmed against a PO.
- Return to supplier created — fires when a new RTS is created.
- Supplier credit recorded — fires when a supplier credit is created from a resolved return.
Using a trigger
- Open Shopify Flow in your admin.
- Click Create workflow.
- Pick a PO Flow trigger from the list.
- Add the conditions and actions you want the workflow to run.
Payload
Each trigger sends a payload of fields about the event — PO number, supplier name, totals, status — so you can use the values in conditions and downstream actions inside Flow.
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