Webhooks allow Stripe to send messages back to your WordPress site. Setting up webhooks is required for some functionality of WP Simple Pay such as creating installment plans and using it with AffiliateWP.
To add the appropriate webhook endpoints, in your Stripe dashboard go to Developer > Webhooks (direct link). We recommend creating two webhook endpoints: one for test mode and one for live mode. If you create both, you’ll need to repeat the below process after toggling modes.
Click Add Endpoint, then add the URL found in Simple Pay Pro > Settings > Stripe Setup tab under Webhooks.
We recommend selecting “receive all events” as WP Simple Pay will probably need to use the same webhook endpoint to communicate with your site using features not yet released.
After you add the endpoint you should see the new URL listed in the webhooks settings.
Stripe can optionally sign the webhook events it sends to your endpoints for added security. To do so, retrieve your endpoint’s secret from your Dashboard’s webhooks settings. Select an endpoint for which you want to obtain the secret, then select the Click to reveal button.
Then copy the signing secret from the Stripe Dashboard, head back to the Stripe Setup tab in your WP admin, then paste it into the Live/Test Endpoint Secret text box.
If you’re interested in more details, you can visit Stripe’s doc on using webhooks with subscriptions.
How can I reduce the number of webhook events my site receives?
When choosing to receive all webhook events, you may notice this message:
If you are interested in reducing the number of webhooks sent to your website, you can choose which webhook events to listen for in your Stripe webhooks settings rather than choosing to receive all events:
Currently WP Simple Pay utilizes the following events:
If you decide to specify which webhook events to listen for, you will need to manually check every future release of WP Simple Pay to ensure you are adding the events necessary for proper functionality.
In order to avoid needing to manually add new webhook events when a future version of WP Simple Pay requires one, we strongly recommend you use ‘receive all events’.