Key Takeaways
- A little-league diamond list is teams who booked that field that evening — not everyone who ever liked the park page.
- Gate-open SMS is a second purpose. Do not reuse the waitlist blast.
- Free is 1 device, 300 SMS lifetime, and 300 contacts. Developer is 25,000 SMS per year. Platform price is devices plus send volume.
- Coach-app OTP stays off the park SIM.
- Idempotency is field-id plus team-id — rainouts re-queue the next slot.
Summary
Scenario 1751 is marketplace contact lists for little-league diamond holds — not farmers-market stalls, not craft-fair booths, not campground pads, not ski lockers. Waitlist is a queue. Gate-open after lights-on is the join. Service pricing is devices plus SMS send volume. You bring the phones and operator credit. Free is 1 device, 300 SMS lifetime, and 300 contacts.
Starter allows 2 devices: park dual-SIM plus a spare. Uncapped platform volume is not unlimited carrier SMS. Confirm payloads in Developer Center.
booked · lights · SMS
field + team — rainout re-queues once
A diamond hold is not a league dump
Open copy names the field and lights window. Snack-bar merch lives elsewhere. Mixing them is how a coach STOPs the week the only diamond they booked is actually calling warmups.
If comms fires “your field” when staff opens the lot, the coach thinks the lights are on. Join gate-open. Suppress lot-open-to-coach templates.
Little-league list matrix
| Event | SMS | Failure |
|---|---|---|
| Lot open | None or queue move | “Play ball” before lights |
| Gate-open | Field + window | Snack-bar stuffed in |
| Rainout | Once, then next team | Two open texts to the same roster |
| Coach OTP | Auth pool | OTP on the park radio |
Gate-open vs waitlist
Persist field-id plus team-id. DLR. MCP wraps REST only.
Category and STOP
The SMS is that diamond. A league newsletter is marketing. FTC business guidance is not a reason to hide lights hours behind a fundraiser pitch.
Devices, volume, and airtime
Weeknight peaks spike. We meter devices and platform sends. Free (1/300/300) is one park proof.
Park operations
Charge the desk chassis before first lights. Setup, Downloads, pricing.
Decision guide
Ship when notice joins gate-open. Delay if lot-open texts “play ball.” Not a CodeCanyon parks pack.
Diamond checklist
- Field plus team idempotency.
- Lot-open silent as gate.
- Snack-bar off gate purpose.
- OTP off park SIM.
- Developer Center fields confirmed.
Next steps
Scenario 1691 farmers market, scenario 1271 campground.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- contacts, lists, and segmentsAudience hygiene
- bulk SMS from Excel and CSVSpreadsheet campaigns
- bulk SMS with consent best practicesHigh-volume outreach
- SMS API documentationLive endpoint reference
