Thingspeak webhook question

Seismet
Sun, 15 Feb 2026 10:43:40 +0000

Hello all,

Can someone please answer me this?

I have created a webhook from TTN to Thingspeak but it fails and looking at the returned data looks like a “code error” 400

I have I think, configured the webhook correctly (Channel ID, API key), would I need to have a valid payload to correct this error or is the webhook configured incorrectly somewhere else.

I ask because 1, I already have a webhook configured for TTN mapper and that is working fine and 2, I have a webhook for Datacake and that state shows “Healthy” although I am not sending anything to Datacake.

Does Thingspeake require a valid payload for the webhook to work correctly and report a “Healthy” state? Thanks for any pointers.

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