If you see 404 errors across your WordPress site after installing the Kit WordPress plugin, there are two common causes: an incomplete plugin connection or outdated permalinks. Work through the fixes below in order.
Complete the plugin connection
For the plugin to know which Kit account is yours and pull the correct data into your site, it needs to be connected to your account.
In your WordPress left sidebar, go to Settings > Kit and click Connect.
Log in to your Kit account.
When you see the message "WordPress is requesting access to your account," click Grant access to WordPress.
Refresh your site. The 404 errors should now be gone.
Re-save your permalinks
If the errors persist after connecting the plugin, your site's permalink structure may need a refresh.
In your WordPress left sidebar, go to Settings > Permalinks.
Without changing anything, click Save Changes. This rebuilds your site's URL rules and clears 404 errors caused by outdated permalinks.
Next steps
Once the errors are resolved, you can continue configuring the plugin to display Kit content on your site:
If you're still seeing 404 errors after both fixes, reach out to our support team and we'll help you track down the cause.