SMS delivery problems

Messages not landing, number formatting and carrier filtering.

  1. All three credentials present? Account SID, auth token and from-number. Missing any one means SMS is treated as unconfigured and nothing is sent.
  2. Has the number opted out? Opt-outs are checked before sending and are recorded per company.
  3. Is the number in the right format? Numbers are normalised before sending; a malformed one will not reach the carrier.

Numbers are masked in logs, so a log line will not show you the full destination number.

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