Key Takeaways
- Scenario 793 is preorder ship-date slip webhooks — not loyalty-points expiry, gift-wrap ready, digital downloads, pre-auth holds, custom-proof approval, line-item cancels, warranty, store credit, price-match, try-on kits, subscription skips, BOPIS, waitlist restocks, preorder drops, gift-card sales, COD, split-ship, refunds, or renewals.
- “Preorder PO-8 slips to 12 Oct” is transactional. “Preorder the next drop” is marketing. Split SIMs.
- Cap SMS per preorder id. WMS retries of ship.slipped will empty prepaid.
- Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Free is 1 / 300 / 300. Developer is 25,000 SMS per year.
- Verify HMAC. A forged ship.slipped event nags people whose box already left.
- REST fields live in Developer Center — not a CodeCanyon preorder plugin. MCP, if you use it, is only a REST wrapper.
Summary
Scenario 793 is ecommerce webhooks for preorder ship-date slips. The WMS owns the factory clock. Your worker texts slipped / shipped — not the whole “preorder the next drop” segment. Priced by devices and SMS send volume. You use your own phone and operator SMS credit.
If you key SMS on SKU instead of preorder+date, the second WMS ping will re-open a 12 Oct clock that already shipped.
Preorder ship-date slip
Map ship.slipped / ship.shipped hooks to a worker. Shopify overview · gateway webhooks. Fields: Developer Center. Industry context: GSMA.
Event map
| Shop event | SMS job | Idempotency | SIM |
|---|---|---|---|
| ship.slipped | New date once | Preorder + date | Transactional |
| ship.shipped | Once | Preorder + date | Transactional |
| preorder the next drop | Promo | Consent + quiet hours | Promo MSISDN |
| staff login | OTP | — | Dedicated OTP phone |
One SMS per slip
WMS retries. Your key is preorder+date. Idempotent send. DLR ≠ shipped — DLR.
Cost
Priced by devices and SMS send volume. You use your own phone and operator SMS credit. Free: 1 device, 300 SMS lifetime, 300 contacts. Developer: 25,000 SMS per year. Paid plans uncap platform volume; devices still meter. Pricing.
Ops
Spare radio before a launch slip week. Doze · setup.
Security
Separate WMS secrets from gateway callbacks. Trust Center · OTP. Next-drop STOP off the slip inbox. STOP.
Checklist
- HMAC required.
- Idempotency on preorder+date.
- Shipped events capped once.
- OTP isolated.
- Airtime for launch slip week.
Next steps
Ecommerce templates · SMS API documentation.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- SMS webhook integrationInbound and status events
- transactional SMS for orders and alertsEvent-driven messages
- SMS API documentationLive endpoint reference
- device and SMS volume pricingPlans and allowances





