{
  "id": "MSG-058",
  "slug": "msg-058",
  "title": "A recurring programme must have an opt-in confirmation",
  "statement": "Every recurring message programme must send a confirmation message when a consumer opts in.",
  "rationale": "The confirmation is the consumer's receipt: it tells them the opt-in worked, what they joined, and how to leave. Without one, the first message they receive is marketing from an unfamiliar number, which is the single most reliable way to generate a spam report.",
  "layer": "MESSAGE_CONTENT",
  "layerSlug": "message-content",
  "object": "campaign.optin_message",
  "severity": "BLOCKING",
  "detectability": [
    "DETERMINISTIC"
  ],
  "failureClass": "RETRY_FIELD",
  "authorities": [
    "CTIA",
    "TCR",
    "Bandwidth",
    "AWS"
  ],
  "applicabilityText": "Applies to every 10DLC registration.",
  "universal": true,
  "remediation": "Configure an opt-in confirmation carrying the brand, programme name, frequency, rates notice, HELP and STOP.",
  "example": "Acme Coffee: you're subscribed to offers. Msg frequency varies. Msg & data rates may apply. Reply HELP for help, STOP to cancel.",
  "phase": "approval",
  "automated": true,
  "url": "https://ekas.io/rules/10dlc/message-content/msg-058/",
  "markdown": "https://ekas.io/rules/10dlc/message-content/msg-058.md",
  "registry": "https://ekas.io/rules/10dlc/",
  "updated": "2026-07-25",
  "licence": "CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/"
}