Testing & Validation
Thorough testing ensures your server-side tracking implementation works correctly and delivers accurate data.
Testing Checklist
Pre-Launch Testing
- Events reach server-side GTM
- Events stored in BigQuery
- Events sent to GA4
- Events sent to Meta
- Events sent to LinkedIn
- User ID tracking works
- Consent management works
- Attribution is accurate
Testing Procedures
Step 1: Test Event Flow
- Trigger test events on website
- Check server-side GTM logs
- Verify events in BigQuery
- Check platform integrations
Step 2: Test User ID
- Visit website
- Check user ID is generated
- Submit form
- Verify user ID persists
Step 3: Test Attribution
- Click ad with UTM
- Navigate site
- Submit form
- Verify UTM in conversion
Step 4: Test Consent
- Reject cookies
- Verify no tracking
- Accept cookies
- Verify tracking works
Validation Tools
GTM Debug Mode
- Test server container
- View event data
- Check destinations
- Verify processing
BigQuery
- Query event data
- Verify events stored
- Check data quality
- Validate schema
Platform Tools
- GA4 DebugView
- Meta Events Manager
- LinkedIn Campaign Manager
Common Issues & Fixes
Issue: Events Not Reaching Server
- Check GTM configuration
- Verify server URL
- Check network requests
- Review server logs
Issue: Events Not in BigQuery
- Check BigQuery destination
- Verify service account
- Check permissions
- Review error logs
Issue: Platform Discrepancies
- Check event mapping
- Verify parameters
- Check user matching
- Review platform settings
Next Step: Learn about Maintenance & Troubleshooting to keep your system running smoothly.