Enable WordPress debug logging in wp-config.php:
                define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', false ); Check WordPress debug log at /wp-content/debug.log Search for "Stripe" or "stripe" entries to find payment processing logs In Stripe Dashboard, click Logs in the left sidebar Review API requests to see payment processing attempts Check for error messages and response codes Compare timing with WordPress debug logs In Stripe Dashboard, go to Developers > Webhooks Click your endpoint to see delivery history Check "Attempted At" and "Status" columns Click on a failed delivery to see error details Click "Resend" to retry failed webhooks