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Quick guide to resolve common connector issues with authentication, syncing, and permissions.

Quick Health Check

Check if your connectors are working properly:

Common Issues

OAuth Callback Fails

Problem: “Invalid redirect URI” error after user grants permissions Solution: Ensure your redirect URL matches EXACTLY what’s configured in your OAuth app:
Prevention:
  • Use HTTPS for production URLs
  • Copy the exact URL from your OAuth app settings
  • Test the flow in development first

Documents Not Syncing

Problem: Documents stuck in “queued” or “extracting” status for over 30 minutes Solution: Trigger a manual sync:
If documents consistently fail:
  • Check if files are over 50MB (may timeout)
  • Verify you have permission to access the documents
  • Ensure the document type is supported

Permission Denied Errors

Problem: Some documents show “permission denied” or aren’t syncing Solution: Re-authenticate with proper permissions:

Sync Takes Too Long

Problem: Hundreds of documents taking hours to sync Solution: Set reasonable document limits:

Provider-Specific Issues

Google Drive

Shared Drive Issues Shared drives require special permissions. Make sure:
  • User has access to the shared drive
  • OAuth app has drive.readonly scope
  • User is a member of the shared drive

Notion

Database Not Syncing Notion databases need explicit permission. If databases aren’t syncing:
  1. Go to Notion workspace settings
  2. Find your integration under “Connections”
  3. Click on the integration
  4. Select specific pages/databases to share
  5. Re-sync after granting access
Workspace Access For full workspace access, a workspace admin must:
  1. Approve the integration
  2. Grant access to all pages
  3. Enable “Read content” permission

OneDrive

Business vs Personal Accounts Business accounts may have additional restrictions:
  • Admin consent might be required
  • Some SharePoint sites may be restricted
  • Compliance policies may block certain files

Gmail

Real-time Sync Not Working If emails aren’t syncing in real-time but scheduled/manual sync works:
  1. Real-time sync uses Google Cloud Pub/Sub webhooks
  2. Watch subscriptions expire after 7 days (supermemory auto-renews)
  3. Only INBOX label triggers real-time updates
  4. Trigger a manual sync to verify the connection is healthy:
Missing Refresh Token If Gmail stops syncing after initial setup:
  1. The user may have revoked app access in Google Account settings
  2. Delete and recreate the connection
  3. Ensure user completes full OAuth consent flow
Scale Plan Required Error Gmail connector requires Scale Plan or Enterprise Plan. If you see access errors:
  • Verify your organization has the required plan
  • Contact support to upgrade your plan

Best Practices

  1. Set reasonable document limits - Start with 500-1000 documents
  2. Use descriptive container tags - Makes debugging easier
  3. Monitor failed documents - Check weekly for sync issues
  4. Handle rate limits gracefully - Implement exponential backoff
  5. Test OAuth in development - Ensure redirect URLs work before production