Configure SMS

Get a phone number, complete A2P 10DLC registration, and set quiet hours before you text anyone.

Updated 2 min readMaintained by Landing Zone

Open this screen in Landing Zone →

SMS carries the strictest consent, carrier, and registration considerations of any channel — stricter than ordinary commercial email. Setup therefore has two sides: getting a number, and getting registered and configured so the number can actually send. Read SMS consent before your first text.

Before you start

  • An active Landing Zone account.
  • Your business details for A2P 10DLC registration.
  • Contacts with recorded opt-in — batch and campaign SMS require VERIFIED consent.

Steps

  1. Get a phone number — open Settings → Phone numbers and provision a number. Pro plans include more sending phone numbers.
  2. Complete A2P 10DLC registration — registration itself happens with the carrier registry outside the app. Follow the A2P 10DLC setup guide, then enter your Brand and Campaign IDs in Settings → Trust Center.
  3. Track your registration status — the Trust Center shows where your registration stands, and SMS sending is gated until it is approved.
  4. Set quiet hours and your timezone — the default is 9 PM–8 AM in each contact's local time; configure the window and timezone for your workspace. See quiet hours.
  5. Record consent for your audience — imported and skip-traced contacts default to UNVERIFIED until an opt-in is recorded, and only VERIFIED contacts are eligible for batch and campaign SMS.
  6. Send a small first batch — follow create your first batch and review the preview's exclusions before you approve.

Limitations

  • There is no in-app A2P submission — the app tracks status and gates sending, but you register with the carrier registry externally.
  • The 30-day SMS cooldown between texts to the same contact is fixed and not configurable; an inbound reply lifts it. See repeat-contact cooldowns.
  • Quiet hours are enforced for SMS and calls at send time.
  • The first outbound SMS to a contact automatically appends "Reply STOP to opt out." and STOP replies are honored automatically.

For capabilities and channel rules in depth, see SMS.