Marketing Messages API for WhatsApp

Updated: Jun 30, 2026

MM API for WhatsApp is an API for sending marketing messages on WhatsApp that optimizes delivery to reach more of the people most likely to find your messages relevant.

Key benefits

• Boost and measure business results: With our automatic delivery optimizations, you can reach more of the people who will find your messages valuable, which drove more reads and clicks in testing.1 You can also access measurement insights:
  • Performance benchmarks, to understand how your message performed compared to similar businesses
  • Tailored recommendations, to improve campaign performance
• Enhance customer experience and engagement: MM API for WhatsApp helps deliver more relevant and timely marketing messages to customers with features like:
  • Automatic creative optimizations (in testing), to apply creative treatments like image animation and filtering for more engaging messages.
  • Richer media formats, like GIFs.
  • Time-to-live, to avoid irrelevant or delayed message delivery for time-sensitive campaigns.
• Upgrade easily, with consistent reliability and security: MM API for WhatsApp offers a similar technical schema and same billing model as Cloud API, and businesses can use existing phone numbers and MM templates.

Send all your marketing messages to the /marketing_messages endpoint for automatic routing of eligible business' messages.

Footnotes

• *Meta conducted an AB test with approximately 12 million delivered marketing messages sent by advertisers in India between January 1, 2025, and January 31, 2025. The test compared MM API for WhatsApp optimized delivery to standard Cloud API delivery for high engagement messages only (for example, messages with more reads, clicks, and so on) and the analysis consisted of a t-test at a 95% confidence level.