Bulk SMS in South Africa is legal for transactional messages and for marketing sent with consent: POPIA requires opt-in for electronic direct marketing, the Consumer Protection Act limits marketing hours, and WASPA members must honour STOP replies. From 2026 marketers must also register with the new National Opt-Out Registry and clean their lists against it.
Rules last checked: October 2026.
How does bulk SMS work in South Africa?
A business sends messages through a bulk SMS provider or SMS gateway, which delivers them to the four main mobile networks: Vodacom, MTN, Cell C and Telkom (Rain is mostly a data network). The Independent Communications Authority of South Africa (ICASA) regulates the communications sector, while the rules that matter most for bulk SMS come from three places:
- POPIA (Protection of Personal Information Act), enforced by the Information Regulator, for consent.
- The Consumer Protection Act (CPA), enforced by the National Consumer Commission, for marketing hours and opt-out.
- The WASPA Code of Conduct, the industry code that messaging providers follow.
If you are new to the model, start with what bulk SMS is and the difference between transactional and promotional SMS.
What does POPIA require for SMS marketing?
Section 69 of POPIA prohibits direct marketing by SMS, email or automated calls unless the person has consented or is an existing customer. Key points:
- You may ask a person for consent only once, and not if they have already refused.
- The existing customer exception covers only your own similar products, for contacts obtained in a sale, and only if the person could opt out when you collected the number and in every later message.
- Every message must identify the sender and give contact details for opting out.
The Information Regulator issued its first enforcement notice on unsolicited direct marketing in February 2024, ordering a company to stop marketing without consent, keep a record of people who refused, and add sender details and opt-out contact to every message.
When can you send marketing SMS (CPA rules)?
Unless the consumer asked or agreed otherwise, direct marketing is not allowed:
| Day | Not allowed |
|---|---|
| Monday to Friday | Before 08:00 and after 20:00 |
| Saturday | Before 09:00 and after 13:00 |
| Sunday and public holidays | All day |
These limits apply to marketing, not to OTPs, alerts or other transactional messages. Schedule campaigns in South African time (SAST, UTC+2).
What are the WASPA opt-out rules?
The WASPA Code of Conduct repeats the POPIA and CPA rules and adds practical ones. A reply of STOP must opt the person out where technically feasible, and END, CANCEL, UNSUBSCRIBE and QUIT count as STOP. Opt-out confirmation must be free. On request, you must be able to show where a contact came from and proof of consent. Choose a provider that is a WASPA member and processes STOP replies automatically.
What is the National Opt-Out Registry?
The National Consumer Commission launched the National Opt-Out Registry on 7 October 2026 under amended CPA regulations. Direct marketers register on the system from 15 September 2026 to December 2026, then clean their lists free of charge from December 2026 to April 2027. From May 2027 consumers can block direct marketers in advance, and marketers must clean their lists monthly before any campaign. Not registering may breach section 11 of the CPA.
Sender IDs, routes and bulk SMS prices in South Africa
Sender ID support in South Africa is limited and differs by network and provider. Some providers report that alphanumeric sender IDs work on MTN and Vodacom but not yet on all networks; others deliver with numeric senders only. Ask your provider exactly what the recipient will see on each network and test it. See SMS sender ID types.
Bulk SMS prices in South Africa depend on volume, route type and whether traffic is local or international (local and international A2P traffic are often priced differently). A very low quote often means a grey route with fake delivery reports, as explained in fake DLRs and SMS pricing explained. Test on every network before committing volume.
Getting a South Africa SMS route
VoIPMatcher sources A2P SMS routes from its carriers and manages them for you. See the South Africa SMS destination page, then request a South Africa bulk SMS route with your traffic type and monthly volume.
Frequently asked questions
Is bulk SMS legal in South Africa?
Yes, for transactional messages and for marketing sent with consent. POPIA requires consent before electronic direct marketing, unless the person is an existing customer who was given a chance to opt out. Every marketing SMS must identify the sender and offer a free opt-out, and Consumer Protection Act time limits apply.
What is the cheapest bulk SMS provider in South Africa?
The lowest price per SMS is not the same as the lowest cost. Compare providers on how they reach Vodacom, MTN, Cell C and Telkom, sender ID support, delivery reports and opt-out handling. A cheap route with poor delivery or grey traffic costs more per delivered message and can create POPIA complaints.
Can I send bulk SMS on a Sunday in South Africa?
Not for direct marketing, unless the consumer has asked or agreed to be contacted then. Under the Consumer Protection Act regulations, direct marketing is not allowed on Sundays or public holidays, on Saturdays before 09:00 or after 13:00, or on other days before 08:00 or after 20:00. Transactional messages are not limited.
What is WASPA?
WASPA, the Wireless Application Service Providers' Association, is the industry body for companies that provide mobile messaging and content services in South Africa. Its members follow a Code of Conduct that covers marketing consent, opt-out handling with STOP, sender identification and complaints. Choosing a provider that is a WASPA member gives you a complaints process and a clear opt-out standard.
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