Compliance · Singapore
RCS Compliance in Singapore
A practical overview of the rules that affect RCS messaging and marketing in Singapore, with a checklist before you launch.
Key Rules for RCS in Singapore
RCS business messaging support in Singapore depends on operators and devices; Do Not Call and consent requirements still apply.
RCS support differs widely between Asian markets and operators, so coverage should be confirmed for each country before planning a campaign.
Data Protection
Websites collecting personal data must comply with the PDPA, including notification, consent, purpose limitation and protection obligations.
Keep a record of how each contact was collected, what they agreed to and when, and make it easy for them to withdraw consent.
Practical Checklist
- Verify your brand with the RCS provider and keep the sender profile accurate.
- Confirm device and operator coverage for the country and configure SMS fallback.
- Apply the same consent rules you use for SMS marketing to promotional RCS.
- Keep suggested replies meaningful and do not hide key terms inside images.
- Track opt-outs and suppress those numbers on both RCS and SMS.
Contact data
Format numbers in international E.164 format with the +65 country code, remove duplicates and invalid numbers, and keep consent records linked to each number.
Timing and Language
Singapore follows the Asia/Singapore time zone (UTC+08:00 in October 2026). Schedule RCS campaigns for the recipient's local daytime hours, avoid public holidays and religious observances that matter to your audience, and convert send times from IST before scheduling.
In Singapore, customers commonly use English, Mandarin, Malay and Tamil. Messages in the customer's preferred language usually perform better, but check how local-language text affects character counts (for SMS) and template approval (for WhatsApp).
Digital Habits and Channels in Singapore
Singapore has near-universal smartphone use, and WhatsApp is the main messaging app for customers and businesses. Organisations sending SMS with alphanumeric sender IDs must register them with the Singapore SMS Sender ID Registry (SSIR) run by IMDA; unregistered sender IDs are labelled 'Likely-SCAM'. The national Do Not Call Registry must be checked before marketing calls and texts.
PayNow, cards and digital wallets dominate payments. Chinese New Year, Hari Raya, Deepavali, the Great Singapore Sale and the 11.11 sale are key periods.
Singapore's economy is a regional hub for finance, shipping, trade, technology and biomedical manufacturing, with many Asia-Pacific headquarters. GST is 9% since January 2024. The Personal Data Protection Act requires consent for marketing, and the Do Not Call provisions mean marketing calls and texts to Singapore numbers must be checked against the registry unless there is clear consent. English is the business language, and Mandarin, Malay and Tamil are also official.
Regulators, Registers and Practical Rules in Singapore
Singapore's PDPC runs the Do Not Call Registry, and the SMS Sender ID Registry is mandatory.
Unregistered sender IDs are labelled "Likely-SCAM".
Singapore's PDPA includes Do Not Call provisions: marketing calls and SMS to Singapore numbers must be checked against the DNC Registry unless the person gave clear consent. Since January 2023, all organisations sending SMS with alphanumeric sender IDs must register them with the SMS Sender ID Registry run by IMDA, and messages from unregistered IDs are marked "Likely-SCAM". Singtel, StarHub, M1 and SIMBA are the operators.
General guidance, not legal advice. Check current rules with the regulator or a local adviser before launch.
Advertising Alongside Messaging
Advertising should follow the Singapore Code of Advertising Practice administered by ASAS, including guidelines on interactive and influencer marketing.
This guide is general information, not legal advice, and reflects our understanding as of October 2026. Rules change, so we check current requirements for Singapore before every launch.
Planning RCS campaigns for Singapore?
We check the rules, set up sender requirements and run compliant campaigns.
RCS in Singapore: FAQs
Do I need consent to send marketing RCS messages in Singapore?
In most cases, yes, or at least an existing customer relationship and a clear opt-out. RCS business messaging support in Singapore depends on operators and devices; Do Not Call and consent requirements still apply.
Is RCS available in Singapore?
RCS business messaging support in Singapore depends on operators and devices; Do Not Call and consent requirements still apply.
Can DND Teams run RCS campaigns to Singapore?
Yes. We are based in Bhopal, India, and run campaigns for international markets remotely, after checking the current rules, sender requirements and coverage for Singapore.
Is this legal advice?
No. This guide is general information to help you plan. Regulations change and their application depends on your business, so take local legal advice for significant campaigns.
Related Guides and Services
Other channels in Singapore
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