To register webhook endpoints, open the sidebar, click Organization, then Developers, then Webhooks (or jump there from the card on Overview).
For organization and venue ids and how they fit with the API, see Developers. For REST API keys, see API keys.
The TablelistPro Developer Docs are at https://api-docs.tablelistpro.com/.
Webhooks:
- Click the "+" sign in the top right
- Enter your endpoint, choose your event(s), and select your venue(s)
- Press Save