Customize the webhook response being sent to the source in FlowMattic

webhook-response.php

<?php
/**
 * Alter the response sent from webhook to the source.
 *
 * @param array  $response     Original response being sent to the source.
 * @param string $workflow_id  The workflow ID.
 * @param array  $capture_data Data captured in the webhook.
 *
 * @return array
 */
function manage_flowmattic_webhook_response( $response, $workflow_id, $capture_data ) {
	// Check your workflow ID.
	if ( 'aAbBCc01234' === $workflow_id ) {
		$response = 'OK';
	}

	return $response;
}
add_filter( 'flowmattic_webhook_response', 'manage_flowmattic_webhook_response', 10, 3 );

This filter works with FlowMattic v2.0 and above only.