Trouble Integrating Notion Template with n8n in the Cloud

Below is a list of checks and steps you can follow to troubleshoot and resolve your Notion integration issue in n8n:

1. Verify Your Notion Credentials and Integration Setup

• Internal Integration Token / OAuth2:
  Confirm that you generated and copied the correct internal integration token or set up your public integration with the required Client ID and Client Secret.
• Integration Sharing:
  For any API calls to work, the Notion page you want to interact with must be shared with your integration. Open the page in your Notion workspace, access the share menu (via the triple dot icon), and make sure your integration has permission.

2. Double Check the Page URL and Permissions

• URL Format:
  Although it might seem like a discrepancy in the URL, n8n’s Notion node doesn’t manipulate the URL format itself. Notion APIs use the page or database IDs extracted from the URL. Make sure that:
  • You’re using a supported method (internal token or OAuth2).
  • The page or database you want to work with is correctly shared with your integration.
• Sharing Issue:
  If the page isn’t shared with the integration, API requests will fail regardless of the URL format.

3. Review the Documentation

• Authentication Instructions:
  Ensure that your setup matches the steps detailed in the Notion credentials documentation.
• Notion Node Operations:
  The Notion node documentation outlines the supported operations. Confirm that your workflow uses one of these operations correctly.

4. Testing and Debugging

• Test Different Authentication Methods:
  If one method (e.g., internal integration token) isn’t working, consider testing with OAuth2 (or vice versa) to rule out authentication issues.
• Check n8n Logs:
  The error messages in n8n or Notion’s API responses can help pinpoint whether the problem is authentication-related or due to permissions on the Notion side.

Following these steps should help you pinpoint the issue. In most cases, problems arise from either a misconfigured credential or not sharing the target Notion page with your integration. Adjust those settings, and your template should start syncing correctly with your Notion workspace.