Marketing teams building an SMS list from leads coming out of Shopify, Facebook or a form on their site need to know before they hit send whether a number is registered against the Do Not Call type register for unsolicited sales contact. TPSCheck's Check Number action does that lookup, confirming whether a number is valid and registered against the TPS or CTPS register, so the check happens automatically rather than someone searching the register by hand.

Slotted into a Zap as the step before Mobile Message sends anything, Check Number lets a business skip anyone on the register and text only the leads that come back clear, whether those leads come from a new Shopify order, a Facebook lead ad or a Typeform entry. It will not stop a transactional message going out, but it keeps a marketing SMS list built through Zapier a little more careful about who ends up on it, which matters more as that list grows month on month.