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Featured Product FlexExt

Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro

Official Digital Marketing Tools & All-In-One Tracking Suite Pro | FlexExt.dev

Product Code: flexext_custom_code • Availability: In Stock

Video Demo Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro Digital Marketing Tools: GA4, Meta CAPI, Google Ads, Consent Mode v2 & Custom Code Pro
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Digital Marketing Tools & All-In-One Tracking Suite Pro is the ultimate enterprise-grade conversion tracking, advertising intelligence, and GDPR Consent Mode v2 powerhouse for OpenCart 4 and OpenCart 3. Consolidate dozens of uncoordinated, slow third-party scripts into a single, high-performance, asynchronous, and strictly deduplicated tracking engine.

Digital Marketing Tools & All-In-One Tracking Suite Pro Showcase Banner

Next-Gen Conversion Tracking & Privacy Architecture

Equip your OpenCart store with dual-track Meta Conversions API (CAPI), Google Ads Enhanced Conversions with automated SHA-256 client data hashing, Google GA4 Enhanced eCommerce via standard GTM DataLayers, TikTok Events API, Snapchat CAPI, and complete European Google Consent Mode v2 compliance with a glassmorphic GDPR cookie shield.

Google GA4 & GTM

Full eCommerce DataLayers (view_item, add_to_cart, begin_checkout, purchase) and server-to-server Measurement API Secret.

Google Ads Enhanced

Automated SHA-256 hashing for customer emails & phones, plus dynamic remarketing across catalog, cart, and checkout.

Meta CAPI & Pixel

Synchronized browser pixel and server-side Graph API events with strict event_id deduplication for 100% attribution.

Consent Mode v2

Full European cookie compliance (4 mandatory signals), Advanced AI modeling, and floating GDPR cookie shield badge.

Omnichannel Pixels

Native tags for TikTok Pixel & API, Snapchat CAPI, Twitter (X), Pinterest, Bing Ads UET, Skroutz, and Matomo.

Custom Code Injector

Inject custom HTML, CSS, and JS into Head, Body, or Footer with syntax-highlighted CodeMirror editor.

15+ Integrated Omnichannel Advertising & Tracking Engines

15+ Integrated Omnichannel Advertising & Tracking Engines

Stop wrestling with fragmented, conflicting plugins. FlexExt delivers native, asynchronous integrations with the world's leading advertising and analytics networks:

  • Google Analytics 4 (GA4): Measurement ID + Server-to-Server Measurement Protocol API Secret with full standard eCommerce DataLayers.
  • Google Ads Conversion Tracking: Primary/secondary conversion actions + automated SHA-256 customer data hashing.
  • Context-Aware Dynamic Remarketing: Automatic item mapping for Home, Category, Search, Product, Cart, and Checkout.
  • Meta (Facebook) Pixel & CAPI: Dual browser & server Graph API tracking with shared event_id deduplication.
  • TikTok Pixel & Events API: Complete catalog events tracking and server-to-server conversions.
  • Snapchat Pixel & Conversions API: Complete Snap pixel tracking with Conversions API attribution.
  • Twitter (X) Universal Tag: Conversion tracking for PageView, ViewContent, AddToCart, and Purchases.
  • Pinterest Tag: Direct integration with rich product metadata and checkout values.
  • Bing Ads (Microsoft Advertising): Universal Event Tracking (UET) with dynamic order revenue.
  • Skroutz & Glami: Specialized regional e-commerce analytics for marketplace sellers.
  • Matomo Analytics: Privacy-first web analytics (Cloud or Self-Hosted On-Premise).
  • Microsoft Clarity & Hotjar: Heatmaps and session recordings with zero layout shift.
Google Consent Mode v2 & GDPR Cookie Shield Suite

Google Consent Mode v2 & GDPR Cookie Shield Suite

European privacy regulations (GDPR / RODO / ePrivacy) and the Digital Markets Act (DMA) require explicit visitor consent before initializing advertising tags. Our built-in Consent Suite guarantees 100% legal compliance without sacrificing conversion data:

4 Mandatory Consent Signals

Natively manages analytics_storage, ad_storage, ad_user_data, and ad_personalization in strict accordance with Google's official v2 protocol.

Advanced vs Basic Mode

Switch between Advanced Mode (cookieless pings with Google AI conversion modeling) and Basic Mode (strict tag blocking until explicit consent).

Zero-Reload Instant Activation

When visitors grant consent, withheld scripts and pixels inject dynamically into the DOM in real time without refreshing the page or losing cart items.

Smart EU/EEA Geo-Targeting

Display the cookie banner exclusively to visitors from the European Union, EEA, and UK, maintaining an uninterrupted checkout flow for global customers.

Dual Server-Side CAPI & Browser Pixel Tracking

Dual Server-Side CAPI & Browser Pixel Tracking (With Deduplication)

Browser-only tracking loses up to 35% to 45% of purchase events due to iOS 14.5+ restrictions, Safari ITP 24-hour cookie limits, and ad-blockers. FlexExt resolves this with dual-track transmission and zero double-counting:

  • Shared Cryptographic event_id: Every pageview, add-to-cart, and checkout success generates a unique event ID shared between client JS and server API calls.
  • Automated Platform Deduplication: Meta Graph API and TikTok Events API match the browser and server events. If the browser event is blocked, the server CAPI event captures the order. If both arrive, platforms deduplicate automatically.
  • SHA-256 Customer Data Hashing: Automatically hashes customer email addresses, phone numbers, and names on the server prior to transmission, maximizing match quality and ad ROAS.
Simple Mode vs Advanced Mode & 1-Click Best Practices Preset

Simple Mode vs Advanced Mode & 1-Click Best Practices Preset

Tailored for busy store owners who need instant setup, as well as digital marketing agencies demanding granular technical control:

Simple Mode

Focused dashboard showing only essential trackers: GA4, Google Ads, Meta Pixel & CAPI, and Cookie Banner.

Advanced Mode

Unlocks all 15 integrations, Measurement Protocol secrets, custom event triggers, and script classifiers.

1-Click GDPR Preset

Instantly configures optimal legal settings: Consent Mode v2, EU Geo-Targeting, and floating shield badge with one click.

GDPR Consent Registry & Audit Log Viewer

GDPR Consent Registry & Audit Log Viewer

European data protection authorities require merchants to prove visitor consent on demand. FlexExt maintains a complete legal audit trail built directly into OpenCart admin:

  • Real-Time KPI Analytics: Monitor Total Audited Consents, Analytics Opt-In Rate, Marketing Acceptance Rate, and All-Granted percentage at a glance.
  • Interactive AJAX Audit Table: Inspect every consent decision with UTC timestamp, SHA-256 hashed IP address, country, and individual consent signals.
  • Proof of Consent Certificate Modal: Generate an official, printable Proof of Consent Certificate for any visitor record with full technical payload details.
  • Automated Data Retention Policy: Automated or 1-click purge of logs older than 30, 90, 180, or 365 days to respect privacy storage limits.
  • Filtered CSV Export: Export consent records with applied date and status filters for compliance audits.
Enterprise Performance, Zero Attrition & Maximum Security

Enterprise Performance, Zero Attrition & Maximum Security

Blazing Fast Asynchronous Execution

All tracking pixels and server-side dispatches run asynchronously with zero storefront layout shift (CLS = 0) and zero impact on Google PageSpeed Insights.

100% Theme & Cache Compatibility

Rigorously tested with Journal 3, One Page Checkout, Basel, Fastor, NitroPack, LiteSpeed Cache, and Cloudflare Rocket Loader with zero core file modifications.

Technical Specifications
Compatibility4.1.0.4, 4.1.0.3, 4.1.0.2, 4.1.0.1, 4.1.0.0, 4.0.2.3, 4.0.2.2, 4.0.2.1, 4.0.2.0, 4.0.1.1, 4.0.1.0, 4.0.0.0, 3.0.5.1, 3.0.5.0, 3.0.4.1, 3.0.4.0, 3.0.3.9, 3.0.3.8, 3.0.3.7, 3.0.3.6, 3.0.3.5, 3.0.3.3, 3.0.3.2, 3.0.3.1, 3.0.3.0, 3.0.2.0, 3.0.1.3, 3.0.1.2, 3.0.1.1, 3.0.1.0, 3.0.0.0
PHP VersionPHP 8.3, PHP 8.2, PHP 8.1, PHP 7.4

Comprehensive User Guide & Installation

Universal Compatibility: OpenCart 4.x (4.0.0.0 — 4.1.0.4+) and OpenCart 3.x (3.0.0.0 — 3.0.4.0+), PHP 7.4 through PHP 8.3+, Journal 3, and all custom themes.
Step-by-Step Installation
  1. Download Installer
    Download the appropriate .ocmod.zip installer from your FlexExt.dev account dashboard.
  2. Upload in OpenCart Admin
    Go to Extensions > Installer, click Upload, and choose the zip package.
  3. Install & Configure
    In Extensions > Extensions > Modules, click Install and then Edit.
  4. Refresh Cache
    Clear theme cache in Developer Settings (OC4) or refresh Modifications (OC3).
v2.2.0 Official Release
  • Smart Consent Gate & Script Classifier (Tag Blocker):
  • Added Consent Category selectors (always, analytics, marketing, personalize) for Header, Body Top, Footer, and Custom JavaScript snippets.
  • Implemented strict storefront script gating (<script type="text/plain" data-flx-consent="..."> and <template data-flx-consent="...">) preventing unauthorized tracking execution prior to visitor consent.
  • Built real-time, zero-reload window.flxUnlockConsentGate() engine that dynamically activates pending scripts the moment consent is granted or updated.
  • Console Event Debugger & Developer Mode:
  • Added dedicated switch to stream real-time tracking events (GA4, Google Ads, Meta CAPI, TikTok) and payload parameters directly to browser developer console with branded badges ([FlexExt Tracker]).
  • Persistent Floating Cookie Preferences Shield Badge:
  • Implemented sleek floating privacy badge in bottom-left/bottom-right screen corners allowing visitors to re-open preferences and modify/withdraw consent at any time per EU GDPR Article 7(3).
v2.1.1 Official Release
  • Fix Consent Choice Storefront Endpoint & Registry Log Viewer:
  • Resolved catalog controller consent route target in OpenCart 4 (extension/flexext_custom_code_oc4/module/custom_code.log_consent).
  • Hardened asynchronous consent delivery using Keepalive Fetch with JSON Content-Type and fallback to Beacon Blob.
  • Enhanced client IP detection supporting Cloudflare (HTTP_CF_CONNECTING_IP), Reverse Proxies (HTTP_X_FORWARDED_FOR), and IPv6 addresses.
  • Resolved admin AJAX URL HTML entity encoding and DOM readyState execution for immediate registry loading and auto-refresh on tab switch.
v2.1.0 Official Release
  • Advanced GDPR Consent Registry & Audit Log Viewer Suite:
  • Implemented dynamic Consent KPI Analytics bar: Total recorded consents, Analytics Opt-in rate, Marketing Opt-in rate, and Full Consent (All-Granted) rate.
  • Added interactive AJAX log table with fast asynchronous pagination and responsive sorting.
  • Implemented multi-criteria filtering: Date range (Date From / To), Consent decision type, Country of origin, and keyword search across SHA-256 IP hashes and User-Agent signatures.
  • Added Proof of Consent Certificate Modal: Detailed legal audit view showcasing exact timestamp, device/OS/browser identification, anonymized hash, and granular Google Consent Mode v2 flag states (analytics_storage, ad_storage, ad_personalization, ad_user_data) compliant with EU GDPR Article 7(1).
  • Added Data Retention Controls: One-click automated database cleanup tool for entries older than 30, 90, 180, 365 days, or complete table purge.
  • Enhanced 1-click CSV audit export to automatically respect active filter criteria.
v2.0.2 Official Release
  • Defaulted Google Consent Mode v2 banner status to active in catalog controller when setting uninitialized.
  • Enhanced demo host licensing fallback resilience.
v2.0.1 Official Release
  • Fixed admin left navigation sidebar and tab switching in OpenCart 4 by removing conflicting styles and implementing fail-safe event delegation.
  • Added multi-code license key persistence across module_custom_code and module_flexext_custom_code_oc4.
v2.0.0 Official Release
  • Major Architecture Upgrade: Transformed into full-featured enterprise Digital Marketing & Tracking Suite matching AITS & Devman suites.
  • Google Consent Mode v2: Full support for Basic and Advanced consent modes, automatic gtag('consent', 'default', ...) signals, and Glassmorphism Cookie Shield banner.
  • Floating Cookie Badge: Discreet badge allowing storefront visitors to update cookie preferences at any time.
  • Complete E-commerce DataLayer: Full support for view_item, view_item_list, add_to_cart, remove_from_cart, view_cart, begin_checkout, and purchase.
  • Google Ads Enhanced Conversions: Added SHA256 hashed customer data collection (email, phone, address) and Dynamic Remarketing tags.
  • Meta (Facebook) CAPI Server-Side: Direct server-to-server Graph API purchase dispatch with event_id deduplication against client-side Pixel.
  • Multi-Platform Ad Integrations: Added support for TikTok (Pixel + Events API), Snapchat (Pixel + CAPI), Twitter / X, Pinterest Tag, Bing Ads UET.
  • Regional Engines & Privacy Analytics: Integrated Skroutz Ecommerce, Glami Pixel, and Matomo Analytics (Self-hosted/Cloud).
  • Heatmaps & User Recording: Direct support for Microsoft Clarity, Hotjar, and Lucky Orange.
  • Live Chat Widgets: One-click embed for Zen Chat (Zendesk), HubSpot Chat, and Tawk.to.
  • Affiliate Networks: Built-in postbacks for AdmitAd, 2Performant, CJ (Commission Junction), and Linkwise.
  • Strict License Lock: Implemented Universal Rule 7 verification with telemetry and author domain protections.
  • Admin UI Redesign: Modern vertical tab navigation panel with custom status switches and real-time previews.
v1.0.0 Official Release
  • Initial official release for OpenCart 4.x and OpenCart 3.x.
  • Code injection manager for <head>, start of <body>, and footer.
  • Built-in syntax highlighter for HTML, CSS, and JavaScript with instant live validation.
  • Multi-store support allowing separate tracking codes (Google Analytics 4, Meta Pixel, Hotjar) per storefront.

You can inject code into the HTML <head> section, immediately after opening <body> (for GTM noscript), or before closing </body> in the footer.

Yes! Because scripts are managed through the database and injected via events, updating themes or OpenCart versions will never overwrite your custom code.

Yes! The custom CSS editor includes live syntax highlighting and immediately applies custom overrides across the storefront.

Yes! The GTM noscript iframe is automatically injected immediately following the opening <body> tag for 100% compliance.

Yes! Dedicated editors make it effortless to place social ad pixels with conversion tracking scripts.

Yes! Simply enter your GA4 Measurement ID (G-XXXXXXXX) for native script insertion without theme file edits.

Yes! Built-in JavaScript and CSS syntax checkers alert you to unmatched brackets or script tags before saving.

Yes, Custom Code, Tracking & Analytics Manager (GA4, GTM, Meta Pixel & SEO) is officially built with dual-engine architecture natively supporting OpenCart 4 (4.0.0.0 through 4.1.0.0+) and OpenCart 3 (3.0.0.0 through 3.0.3.9+). Separate, optimized packages are provided for each platform.

Absolutely. All FlexExt extensions undergo continuous regression testing against Journal 3, the default OpenCart theme, and major Bootstrap 5 and Bootstrap 3 storefront templates with zero layout interference.

The extension supports PHP 7.4, 8.0, 8.1, 8.2, and 8.3. The codebase is strictly typed and optimized for modern PHP JIT compilation and opcache performance.

Upon purchasing the extension on flexext.dev, you receive a unique Commercial License Key in your customer account. Simply paste this key into the module settings in your OpenCart admin to instantly unlock all features.

Not at all. Performance is our primary benchmark. The extension uses indexed database queries, lightweight vanilla JavaScript without heavy third-party dependencies, and zero Cumulative Layout Shift (Zero CLS).

Yes, licenses allow activation on local and staging development environments (such as localhost, *.test, *.local, or dev/staging subdomains) alongside your primary live production domain.

No. All modifications are strictly implemented via standard OCMOD XML (in OC3) or native Event Interceptors and Extension Controllers (in OC4). Your core OpenCart system files remain 100% untouched.

Yes, 100%. The frontend layout dynamically adapts to all viewports including smartphones (iOS / Android), tablets, and high-resolution 4K desktop screens with touch gesture support.

You can download updated .ocmod.zip packages directly from your flexext.dev customer portal. Upgrades preserve all previously saved settings and database records without data loss.

Uninstallation cleanly deregisters controllers and template injections. Your product catalog, orders, and customer databases remain completely intact and safe.

Yes, full multi-store support is built into the architecture. You can configure individual rules, settings, and behaviors per store instance from a single OpenCart administrative panel.

Yes, the extension does not harvest or transmit sensitive customer personal data to third-party tracking services without explicit administrator configuration.

Comprehensive step-by-step documentation is included in the package and on the product tab. If you encounter any edge cases, our technical engineering team provides dedicated assistance via flexext.dev.

No. All frontend outputs and routing respect standard OpenCart SEO keywords, canonical URLs, and are fully compatible with server-side caching modules such as Redis, Memcached, or Varnish.

We stand behind our software with a 100% functionality guarantee. If the extension does not work as advertised on a supported OpenCart installation and our support team cannot resolve it, you receive a full refund.