Integrating your WooCommerce store with QuickBooks or Xero via Synder takes just a couple of clicks and enables automatic synchronization of all ongoing orders along with the auto-categorization and smooth reconciliation of synced data allowing for an easy and accurate WooCommerce accounting. To make sure the setup process runs seamlessly for you, our team prepared the following guide where you will learn how to avoid and troubleshoot 404 connection errors.


  1. Why 404 error appear

  2. How to avoid the issue

  3. How to check if my link works properly

Why 404 error appears

Some WooCommerce store domains have subfolders, if users try to connect to the store using a site URL containing the subfolder, they will receive a 404 error. 

For example John sells his products via his WooCommerce store in both the United States and Canada, so his website has two directories (subfolders):


How to avoid the issue

Let’s keep John’s example. In order to properly connect to a WooCommerce store, users need to specify only a store URL  ‘’ without any subfolder such as “/us” or “/ca” from the example.

To sum up, please make sure you use only a WooCommerce site URL and erase any subfolder details for the connection, this will allow you to avoid 404 connection errors.

How to check if my link works properly

You can also check yourself if the link to your WooCommerce store works properly. In order to do that, add “/wp-json/” in the address bar after the store domain, if the store domain is correct you will see json code appearing, otherwise it will be an error.

  1. – ERROR 404
  2. – page with code

Get in touch with the Synder team via online support chat, phone, or email with any questions you might have so far – we are always happy to help you!

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