Everything worth knowing, nothing that isn't.
Permission and easy opt-out
Send only to recipients who explicitly opted in, honour STOP/unsubscribe instantly, and keep proof of consent. Marketing without opt-in breaches regulation in most markets and destroys deliverability. See /answers/what-is-dnc and /answers/gdpr-for-messaging.
Timing and frequency
Send in the recipient's local business hours, avoid quiet hours, and cap frequency — a few well-timed messages outperform a constant stream and keep opt-out rates low.
Craft the message
Identify your brand in the first words, state one clear benefit, include exactly one call to action, and keep it inside a single segment. Add a short link for depth rather than cramming detail into the text.
Segment and personalize
Target by behaviour and lifecycle stage rather than blasting the whole list; relevant offers to the right segment lift conversion and reduce opt-outs.
Measure and combine channels
Track delivery, click and conversion, and coordinate SMS with email and WhatsApp so each channel does what it does best. See /answers/sms-vs-email-marketing and /products/omnichannel.