The longer answer
Dispensary marketing SMS is one of the highest-performing channels in cannabis retail — typical open rates run 95%+ and engagement materially outperforms email. The compliance bar is real, but it's well-defined.
Practically, dispensaries need: verifiable opt-ins (POS, web, loyalty), a registered 10DLC brand and campaigns, age-gated content delivery, suppression list enforcement, and per-state content rules applied automatically. A purpose-built cannabis platform handles all of this; a generic SMS tool typically does not.
Operators who try to run dispensary SMS on a generic platform (Twilio direct, Mailchimp, Klaviyo) usually see deliverability degrade within 6-12 months as carrier filtering catches up. The right tool is one that models cannabis-specific compliance and deliverability from day one.