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SMS complianceReviewed September 7, 2026

What is SMS opt-out?

SMS opt-out is a consumer request to stop messaging that should be honored through clear and reasonable methods.

Who this applies to#

  • The guidance concerns consumer requests to stop messaging and covered revocation

What SMS opt-out requires#

  • Honor covered revocation through reasonable methods within a reasonable time not exceeding 10 business days and honor clear natural-language replies

What this does not require#

  • CTIA does not limit valid opt-outs to exact uppercase STOP

Common mistakes#

  1. Accepting only one exact keyword
  2. Continuing unrelated promotional messages after an opt-out

SMS opt-out checklist#

  • Accept ordinary-language requests
  • Record the request
  • Stop covered messages within the cited period

Commonly confused with#

OnVoard's take#

An opt-out path should understand ordinary language and make the stop decision auditable across sending paths.

Official sources#