Send Message

Send messages at scale.

Rate Limit

Limit TypeValue
Requests per second10

If you exceed these limits, you will receive a 429 Rate Limit Exceeded response.

API Details

  • For messaging without the use of campaigns, content and from are required.
    • If a campaignIdfor an SMS campaign is provided, the campaign’s default content, sender number, and opt-in behavior are used unless overridden in the request (via content, from, or to.bypassOptIn). The message will be attributed to that campaign in reporting.
  • If a phoneNumber is provided that does not belong to an existing profile, a new profile will be created.

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