channel_not_found
The channelId is missing, unknown, or not visible to this API key’s workspace.
What to do
- Copy
channelIdfrom the dashboard Channels page (or list channels via the API if available to your key). - Ensure the key belongs to the same workspace as the channel.
- Reconnect WhatsApp if the channel was deleted or replaced — ids change when you reconnect.
- Do not guess ObjectIds from another tenant; cross-tenant ids return not-found style errors.