N8n Activation Key Is In The Wrong Format Extra Quality Here

curl -X POST http://localhost:5678/api/license \ -H "Content-Type: application/json" \ -d '"licenseKey": "n8n-ent-3Fg7Hj2Lk9Qw4RtY"'

If the format is definitely correct and the error persists, it may be a . Ensure your n8n instance is updated to the latest version, as licensing formats can change with major software updates. n8n activation key is in the wrong format

| Step | Action | |------|--------| | 1 | – Re-copy from original email/license portal. | | 2 | Verify format manually: Must be n8n-ent-XXXXXXXXXXXXXXXX or n8n-pro-XXXXXXXX (length varies). | | 3 | Remove surrounding whitespace – Paste into Notepad to see hidden chars. | | 4 | Test in clean environment: docker run -it -e N8N_LICENSE_KEY=your-key n8nio/n8n | | 5 | Upgrade n8n if version < 0.200.0. | | 6 | Check if key is for Cloud only – Some keys cannot be used in self-hosted. | | | 2 | Verify format manually: Must