1. Create a receiver
Add an n8n Webhook node, choose POST, activate the workflow and copy the production HTTPS URL.
2. Choose events and test
As workspace owner, open Automations. Choose a service, paste the URL and select events. Save and send a test. A 2xx result confirms that the receiver accepted the request. Look for the test execution in n8n.
3. Add a workflow action
For example, append the amount and date of confirmed payments to Google Sheets. Verify the X-Script-Lab-Signature header using HMAC-SHA256 with the signing secret and the timestamp, a dot, and the raw JSON body. Use the event ID to deduplicate downstream actions.