Support
Before you email support.
Most setup issues have a known cause. Check these first — the answer is usually in the Executions tab.
For all n8n workflow products
- Go to Executions in your n8n sidebar and find the failed run
- Click the red node — the error message tells you exactly what went wrong
- Confirm all credentials are connected (Google Sheets, SMTP) — red warning triangles mean a credential is not linked
- Confirm you are using the Production URL for webhook nodes, not the Test URL
- Confirm the Google Sheet tab names match exactly: Vendors and Response Log (case-sensitive)
- Confirm your Sheet ID is correct in all Google Sheets nodes
- Confirm the Config node values match your actual n8n domain and email address
Common errors and fixes
| Symptom | Most likely cause | Fix |
|---|---|---|
| Vendor email shows literal {{ $json.field }} | Email HTML field using wrong expression syntax | Confirm the HTML field shows ={{ $json.emailHtml }} |
| Vendor clicks link, sees blank white page | Workflow not active or Production URL not used | Activate the workflow. Check Executions tab for the failed node. |
| sheetName parameter error | Tab name typed instead of selected | Open Sheets node, select tab from dropdown — do not type it |
| getAll is not valid | Operation name incompatible with your n8n version | Change operation to Get Row(s) in the Sheets node |
| Access blocked — Google OAuth | Gmail not added as test user in Google Cloud | Add your Gmail to OAuth consent screen test users in Google Cloud Console |
| Sheet not updating after vendor submits | Wrong Sheet ID or credential not linked | Check all Google Sheets nodes for correct Sheet ID and credential |
Still stuck?
Email briefs@pmexecution.com with:
- Your n8n version (Settings → About)
- The error message from the Executions tab
- Which step in the setup guide you are on
Response time: typically within 1 business day.