---
title: "How do you validate postcodes?"
canonical: "https://ingrid-support.refined.site/space/KB/11502220/How%20do%20you%20validate%20postcodes%3F"
format: markdown
---
Ingrid is accountable for verifying postal codes using the carrier's API. The exception is a <u>[custom shipping option](https://ingrid-ab.atlassian.net/wiki/spaces/KB/pages/11535263)</u> where we verify postal codes using <u>[filters](https://ingrid-ab.atlassian.net/wiki/spaces/KB/pages/11436668)</u>.