VOID is a certified Google Tag Manager expert. Advanced configuration, server-side tagging, e-commerce tracking: we manage your entire tag ecosystem.
Our GTM Services
GTM Configuration
Container setup, dataLayer implementation, test/prod environments configuration
E-commerce Tracking
Enhanced e-commerce GA4, Facebook Pixel, Google Ads conversions tracking
Server-Side Tagging
GTM Server for improved performance and privacy (iOS 14.5+)
Custom Tags
Custom JavaScript, API calls, CRM/ERP integrations
Why Google Tag Manager?
- Tag Centralization
Manage all your tracking scripts from a single interface
- Code-Free Modifications
Add or modify tags without developer intervention
- Versioning & Rollback
Track changes and easily revert if needed
- Test Environments
Preview and debug before publishing to production
- Improved Performance
Single container script instead of multiple tracking codes
- Marketing Autonomy
Marketing teams can deploy tags independently
Client-Side vs Server-Side GTM
Client-Side GTM
Pros:
- Simple setup
- No additional infrastructure
- Free
- Rich ecosystem of templates
Cons:
- 20-30% data loss (adblockers)
- Browser performance impact
- Limited iOS 14.5+ tracking
- Cookie restrictions
Server-Side GTM
Pros:
- Bypasses adblockers (99% data)
- Better performance
- Enhanced privacy & control
- iOS 14.5+ compliance
Cons:
- Requires Google Cloud
- Additional costs (~$50-200/month)
- More complex setup
- Technical expertise needed
Recommendation:
Server-Side GTM is essential for e-commerce and sites targeting iOS users (iOS 14.5+ restrictions). For content sites with limited budget, client-side remains viable.
E-commerce Tracking with GTM
1. Implement Enhanced E-commerce dataLayer
Track the complete customer journey:
- Product Impressions: Products viewed in lists
- Product Clicks: User clicks on products
- Product Details: Product page views
- Add to Cart: Products added to cart
- Remove from Cart: Products removed
- Checkout Steps: Multi-step checkout process
- Purchases: Completed transactions with revenue
2. Configure GA4 E-commerce Tags
Set up Google Analytics 4 with enhanced e-commerce events: view_item, add_to_cart, begin_checkout, purchase
3. Add Conversion Pixels
Deploy pixels for advertising platforms:
- Facebook Pixel (Meta Ads)
- Google Ads Conversion Tracking
- TikTok Pixel
- Snapchat Pixel
- Pinterest Tag
4. Server-Side for iOS 14.5+
Bypass Apple's iOS 14.5+ tracking restrictions with server-side tagging to maintain accurate attribution
GDPR & CNDP Compliance
Essential Requirements:
- Consent Mode v2
Mandatory in Europe since March 2024. Adjust tracking based on user consent
- CMP Integration
Integrate Consent Management Platform (OneTrust, CookieBot, Didomi) with GTM
- Conditional Tags
Fire tags only when user has given proper consent
- IP Anonymization
Anonymize IP addresses for privacy compliance
- Morocco CNDP
Comply with Morocco's CNDP (National Commission for Personal Data Protection) regulations
Frequently Asked Questions
Why use Google Tag Manager?
Tag centralization, code-free modifications, versioning, test environments, easy debugging, improved performance (single script), autonomous marketing control. Essential for sites with >10 tags or e-commerce.
Client-Side vs Server-Side GTM?
Client-Side: classic, simple, but affected by adblockers (20-30% data loss). Server-Side: requires Google Cloud infrastructure, more complex, but bypasses adblockers, improves performance, protects data. Recommended for e-commerce and iOS 14.5+.
How to track e-commerce with GTM?
Implement enhanced e-commerce dataLayer: product impressions, clicks, add to cart, checkout steps, purchases. Tags: GA4, Google Ads, Facebook Pixel, TikTok, Snapchat. Server-side to bypass iOS 14.5 restrictions.
How to ensure GDPR/CNDP compliance?
Consent Mode v2 mandatory. CMP (OneTrust, CookieBot) integrated with GTM. Conditional tags based on consent. IP anonymization, respect opt-out. Legal documentation. Morocco CNDP audit on request.
How to get started with GTM?
Request an audit of your current tracking. We analyze your marketing needs, propose an adapted GTM architecture and establish a complete tagging plan. Configuration and training included.
Need GTM Configuration or Optimization?
VOID's certified experts handle your complete GTM setup and advanced tracking