A2P SMS is regulated market by market. Understanding the common themes keeps your campaigns compliant and delivering.

Registration and licensing

Many markets require sender-ID and sometimes content or template registration through the operators or a regulator. This is the single most common cause of blocked traffic.

Consent and opt-out

Marketing messages generally require opt-in and a working opt-out (STOP). Transactional messages like OTP are treated differently, but keeping clean consent records protects you everywhere.

Timing and content

Some markets restrict promotional sending hours (quiet hours / DND) and prohibited content. Building these rules into your sending platform avoids fines and blocks.

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Stay compliant with a platform that handles the rules: get started.