Hello, I installed n8n on Windows using npm install -g n8n. When I start n8n, I see this error: [license SDK] license activation failed: request/body/reservationId must match format "uuid" 400 Activation key is in the wrong format I followed the steps to request a free community license key, but…

The issue with not receiving the n8n license code is not resolved. I currently have it.

This is still not working. I have the same issue too.

I got it to work!! In my hosted instance I went to Personal / Workflows. I clicked the icon at right to create a folder and got an error message that I needed to be registered to create folders. I clicked to send a new key and a new key was sent that was different to the old. This new key worked.

I did not receive my free self‑hosted activation key

Questions

jabbson December 6, 2025, 7:47pm 2

Not receiving the license by email is an ongoing issue, which will be fixed on Monday if not before.

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I did not receive my free self‑hosted activation key

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