Under the Webhook settings window, provide the necessary details.
1. Webhook url : The url to receive the webhook
2. Serect key : Set any key to verify its going from Online Check Writer. (Not required unless you want to validate signature key).
3. Mail Tracking Status: If you want to get only mailed checks physical status for instance in_transit , delivered etc. (See the sample response attached).
4. Send Check Status Update: If you want to track the check statement status change. It will also provide you tracking code if it is a mail check after generating envelop (See the sample response attached).
Under the Get Paid by Form Webhook window, provide the necessary details.
gpbf.check.updated : Created when a check created with GPBL (payment link) is updated. Sample file attached (getpaid_by_form_updated.txt)