Title: Apple Pay Validation Error
Last modified: December 18, 2025

---

# Apple Pay Validation Error

 *  Resolved [ecomlover](https://wordpress.org/support/users/ecomlover/)
 * (@ecomlover)
 * [5 months, 3 weeks ago](https://wordpress.org/support/topic/apple-pay-validation-error-3/)
 * After clicking **“Add domain association file”**, the file is created successfully
   and is accessible. However, Apple Pay fails on iPhone with:
 * **`APPLE_PAY_MERCHANT_SESSION_VALIDATION_ERROR`**
 * The issue was resolved by manually adding www. oursite .com in PayPal Apple Pay
   settings:
   [https://www.paypal.com/uccservicing/apm/applepay](https://www.paypal.com/uccservicing/apm/applepay)
 * It appears the plugin may only be validating the root domain and not the www 
   version, which could be causing the error. We may be wrong, so it would be appreciated
   if you could comment on this error and confirm whether manually adding domains
   in the PayPal dashboard is the only solution.
    -  This topic was modified 5 months, 3 weeks ago by [ecomlover](https://wordpress.org/support/users/ecomlover/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Clayton R](https://wordpress.org/support/users/mrclayton/)
 * (@mrclayton)
 * [5 months, 3 weeks ago](https://wordpress.org/support/topic/apple-pay-validation-error-3/#post-18761541)
 * Hi [@ecomlover](https://wordpress.org/support/users/ecomlover/)
 * The plugin only uploads the domain association file, it does not perform the 
   domain registration because PayPal’s API does not support that. The domain registration
   must be done manually.
 * We cover those steps in our documentation: [https://paymentplugins.com/documentation/paypal/applepay/setup](https://paymentplugins.com/documentation/paypal/applepay/setup)
 * Kind Regards
 *  Thread Starter [ecomlover](https://wordpress.org/support/users/ecomlover/)
 * (@ecomlover)
 * [5 months, 3 weeks ago](https://wordpress.org/support/topic/apple-pay-validation-error-3/#post-18761543)
 * Omg, you have the best support ever! It’s faster than our customer service which
   is nearly impossible! Thank you for looking after all of us! 🙂

Viewing 2 replies - 1 through 2 (of 2 total)

You must be [logged in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fapple-pay-validation-error-3%2F%3Foutput_format%3Dmd&locale=en_US)
to reply to this topic.

 * ![](https://ps.w.org/pymntpl-paypal-woocommerce/assets/icon-256x256.png?rev=2718338)
 * [Payment Plugins for PayPal WooCommerce](https://wordpress.org/plugins/pymntpl-paypal-woocommerce/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/pymntpl-paypal-woocommerce/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/pymntpl-paypal-woocommerce/)
 * [Active Topics](https://wordpress.org/support/plugin/pymntpl-paypal-woocommerce/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/pymntpl-paypal-woocommerce/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/pymntpl-paypal-woocommerce/reviews/)

## Tags

 * [validation](https://wordpress.org/support/topic-tag/validation/)

 * 2 replies
 * 2 participants
 * Last reply from: [ecomlover](https://wordpress.org/support/users/ecomlover/)
 * Last activity: [5 months, 3 weeks ago](https://wordpress.org/support/topic/apple-pay-validation-error-3/#post-18761543)
 * Status: resolved