I diagnose and repair one existing n8n workflow that is failing, erroring, or producing wrong output, and explain what went wrong.

Scope & deliverables:

• Diagnosis of 1 n8n workflow (up to 15 nodes)

• Repair of the identified errors (node config, expressions, credentials mapping, data formatting, triggers)

• Basic error notification added if none exists (email or Slack)

• Test runs with sample data to confirm the fix

• Short written summary: root cause, what changed, and how to avoid it recurring

Out of scope: Rebuilding the workflow from scratch, adding new features or apps, workflows over 15 nodes, n8n server/self-hosting issues, fixing third-party API outages.

What you provide: Access to the n8n instance (or exported workflow JSON), a description of expected vs. actual behavior, recent error messages/execution logs, and test credentials or sandbox accounts where possible.

Timeline: 3 days

Revisions: 1 round