What setup really requires
A Square Marketing subscriber on Square Plus or Square Premium needs the customers permission in Square Dashboard, business details, a sender name, a website or social link, a payment method, and a verified toll-free number. Verification averages two to three business days but can take up to 14 business days; campaigns remain drafts and cannot be sent while verification is pending. No dedicated SMS hardware is required—the workflow runs in Square Dashboard and connects to Square Point of Sale and Customer Directory.
