User-Agent Header

What is a User-Agent and why do I need to have one?

A User-Agent header must be supplied with all Merchant API requests prior to placing any live transactions.

A User-Agent header is used by the Afterpay team to identify which Merchant website, and Platform, API requests are coming from. You can use the form below to help generate your User-Agent header.

Afterpay Plugin
Platform
System Information
Merchant ID For sandbox testing use your sandbox Merchant ID. Remember to update this when deploying to production.
Merchant Website URL
User Agent:

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