Transactional versus promotional messaging
The core distinction in Saudi SMS rules is between transactional messages (triggered by a specific customer action — see Transactional SMS and OTP) and promotional messages (marketing content sent to a list — see Bulk SMS). Promotional messaging carries stricter consent and timing requirements than transactional messaging.
Sender identification
Messages should identify the sending business clearly through a registered sender ID rather than an anonymous number, so recipients can recognize who is contacting them. Sender ID registration for the Digital Connect platform is handled through the Interkey parent site — see sender ID registration.
Opt-in and opt-out concepts
Promotional SMS should only go to recipients who gave clear, specific consent to receive marketing messages — not consent bundled into unrelated terms. Every promotional message needs a working, understandable way for the recipient to opt out, and opt-out requests should be honored promptly rather than left pending.
Suppression and do-not-disturb concepts
Once a recipient opts out, they should be excluded from future promotional sends — commonly managed through a suppression list checked before every campaign. Promotional messages are also generally expected to respect restricted hours rather than being sent at times likely to disturb recipients.
Campaign preparation
- Confirm the audience list is opt-in only, with consent records retained
- Use a registered, recognizable sender ID
- Include a clear opt-out mechanism in every promotional message
- Check the send list against your suppression/opt-out list before sending
- Schedule sends within permitted hours
Record-keeping checklist
- When and how each recipient opted in
- Opt-out requests and when they were honored
- Sender ID registration and approval records
- Delivery and campaign logs for the messages actually sent
Sources and further reading
This page explains general concepts for planning purposes. For the authoritative, current rules, see the CST anti-spam regulation document published by the Saudi Communications, Space and Technology Commission, and for sender ID registration specifically, see sender ID registration on the Interkey parent site.
Frequently asked questions
Do I need consent to send promotional SMS in Saudi Arabia?
Yes — promotional SMS should go only to recipients who gave clear, specific consent, and every promotional message needs a working opt-out option. Transactional messages (see Transactional SMS) are treated differently since they are triggered by a customer's own action.
What is a sender ID and do I need to register one?
A sender ID is the business name recipients see instead of a phone number. It generally needs to be registered and approved before use — see sender ID registration on the Interkey parent site.
Are OTP messages subject to the same rules as marketing SMS?
No — OTP and other transactional messages are triggered by a specific customer action and are not treated as promotional content, so the opt-in/opt-out framework for marketing messages does not apply the same way. See OTP & Verification.
Is this page legal advice?
No. This page explains general concepts to help with planning. For definitive requirements, refer to official CST guidance directly, and consult qualified legal counsel for your specific situation.