406 on KnowBe4 API when running N8N - Postman is fine

[MadMax2025]

Another Newbie Question folks:

setting up my workflow to our KB4 instance. Have created the necessary API Key and also tested via Postman - works like a charm:

curl --location ‘https://eu.api.knowbe4.com/v1/account’
–header ‘Authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx’

When I copy and paste the curl - yes including the Bearer Key - above into N8N I get a 406 error

I have tried it as well with “Generic Authentication” and “Bearer” but same results.

What am I missing ?

Thx
MG

{
  "nodes": [
    {
      "parameters": {
        "url": "https://eu.api.knowbe4.com/v1/account",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "Bearer xxxxxxxxxxxxxxxxxxxxxxxx"
            }
          ]
        },
        "options": {
          "redirect": {
            "redirect": {
              "followRedirects": false
            }
          }
        }
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        208,
        0
      ],
      "id": "864ed5b4-0ff8-4148-90f3-41bde1907a32",
      "name": "HTTP Request"
    }
  ],
  "connections": {},
  "pinData": {},
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "96b1994456471e2602e2e247ae8b3690eb8ffcfe04274d85a98190e2f2154798"
  }
}


## Information on your n8n setup
- **n8n version: 1.106.3
- **Database (default: SQLite):Postgres
- **n8n EXECUTIONS_PROCESS setting (default: own, main): own
- **Running n8n via (Docker, npm, n8n cloud, desktop app): Docker
- **Operating system: Ubuntu 24.02.03 LTS

[MadMax2025]

60min after posting the question I found the solution myself

To make this work you need to send an “Accept” Header as well - Postman does this automatically but N8N does not. So the working node now looks like this:

Thanks for listening
MG