n8n Quickstart Course - Invalid assessment_id error

n8n Academy QS101: n8n Quickstart
1

Hi,
I am doing the n8n Quickstart course.
My GetDataFromWarehouse node was working yesterday, but today it returns:
“Invalid assessment_id”
I have:

  • Copied the assessment ID directly from the course page.
  • Checked the x-assessment-id header multiple times.
  • Re-entered the assessment ID manually.
  • Saved and reloaded the workflow.
    The workflow worked yesterday but suddenly stopped working today.
    Has anyone experienced this issue or knows how to fix it?
    Thanks.

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Describe the problem/error/question

What is the error message (if any)?

Please share your workflow

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Share the output returned by the last node

Information on your n8n setup

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:
2

Welcome to the n8n community @AliHussnain
The bad request message points to a communication error, I recommend restarting and trying again. It could be a temporary error…