Definition
SMS trades intimacy for immediacy - open rates exceed 90% within minutes, but tolerance for volume is nearly zero. Winning programs reserve texts for moments that matter: flash windows, restocks, appointment reminders, delivery updates.
Why it matters
Paired with email's depth, SMS adds speed - the combo routinely lifts campaign revenue 15-30% in retention-heavy businesses.
Benchmarks
Limit 2-6 marketing texts monthly; measure opt-out weekly
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