Bookkeepers and finance teams handling cross border invoicing often need to confirm a customer's VAT number is valid before anything else happens in a workflow, and VIES API handles that check automatically inside a Zap. It doesn't send a text message itself and it has no trigger of its own to hand off to Mobile Message, so it sits in the middle of a Zap rather than on either end of one.

Placed ahead of a text step, it can confirm a VAT number is genuine before an invoice reminder or a payment confirmation goes out by SMS through Mobile Message, so the message only sends once the underlying company detail has actually been checked. It's a small addition to a bigger automation, but it removes the chance of a reminder being sent to a business whose VAT number turns out to be wrong or outdated.