Mixed use-case opt-in
Use this pattern when your campaign sends both transactional and marketing messages. Carrier compliance requires that marketing and transactional consent are collected in separate checkboxes — a single checkbox cannot cover both. The user must be able to opt into transactional only, marketing only, both, or neither.
What makes this compliant
Separate checkboxes for each message type — Transactional SMS and marketing SMS each have their own checkbox with distinct consent language.
Each checkbox has its own HELP/STOP instructions — Both SMS consent checkboxes independently include frequency, data rates, and opt-out instructions.
Terms and Privacy are a third checkbox — Acceptance of Terms/Privacy is separate from both SMS consent types.
Neither SMS checkbox is required — The user can submit the form without checking either SMS consent box.
Marketing checkbox specifies frequency — "Up to 4 msgs/month" is more specific than "frequency varies" and is preferred for marketing campaigns.
Common mistakes that cause denial
Combining transactional and marketing consent into a single checkbox
Making either SMS checkbox required to submit the form
Missing HELP/STOP on one of the SMS checkboxes
Not clearly distinguishing which messages are marketing vs. transactional
Pre-checking either consent box
