Banner for Validate the Postal Code for UK Members at Membership Checkout

There may come a time where you need to ensure that the postal codes entered in by your UK customers are valid. The code recipe below uses the free third-party Postcodes.io API to validate the postal code upon checkout. This code recipe could be adapted to validate for other regions.

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Jarryd Long

Author: Jarryd Long

Jarryd is a Technical Support Engineer at PMPro. He prides himself on offering the best support to our customers and has been a part of the WordPress space since his high school days. He's developed a variety of plugins as well as spoken on the topic of providing outstanding support to customers.