A customer fills in a form with their delivery postcode and the number is slightly off, a digit transposed or a country mismatched, and the text that goes out afterwards ends up referencing an address that will bounce at the courier. PostalDataPI checks postal codes against real data for more than 240 countries and territories before anything else in the Zap runs, catching that kind of error before it reaches a customer's phone.

Through Zapier, PostalDataPI's bulk validate postal codes action sits in the middle of a Zap, taking the postcode a Shopify order, a Google Forms response or a Typeform entry captured and checking it before Mobile Message sends the confirmation text. Up to a thousand codes can be checked in one request, so it suits both a single order confirmation and a bigger batch of form entries, and only validated addresses trigger the text that follows. The result is a shorter list of failed deliveries and fewer follow up calls chasing an address that was wrong from the start.