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I am seeking a highly experienced data and event tracking consultant with significant experience in GTM, Google Ads, GA4, Server-to-Server, meta Ads pixel and event tracking for a transactional marketplace. We are currently working with a consultant, but they have made a number of mistakes leading to double or non-recorded events, and every time they make changes the implementation has been shoddy. We want an initial audit of our data layer, GTM and our pixel set-up to troubleshoot known issues, and then advice on implementing any necessary remediation work. I am looking for a highly experienced data consultant with strong interpersonal skills who is happy to jump on video calls etc.
Project ID: 40571388
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86 freelancers are bidding on average £38 GBP/hour for this job

✍️ Hi there! It sounds like you're aiming to fine-tune your event tracking and data accuracy for your transactional marketplace. We've managed $5M+ in ad spend across diverse sectors like e-commerce and local businesses, focusing heavily on CPA and ROAS optimization. For your specific challenge, I'd approach it by conducting a thorough audit of your GTM setup and pixel configuration to identify and rectify discrepancies in event tracking. This includes ensuring that all tags fire correctly and that your data layer supports accurate tracking. To better understand your current situation: - What is your current monthly ad spend and which channels are you using? - Is your pixel or tag manager already set up completely, or are there any missing components? Happy to share a quick audit of your current campaigns — message me! Please let me know your thoughts. Looking forward, Roman
£36 GBP in 4 days
10.0
10.0

I can audit your complete tracking setup, including GTM, GA4, Google Ads, Meta Pixel, server-side tracking, and the data layer to identify duplicate, missing, or inaccurate events. I’ll pinpoint the root causes, recommend a reliable tracking strategy, and help implement clean, scalable fixes that ensure accurate reporting across your transactional marketplace. I’m also comfortable collaborating over video calls to review findings, explain recommendations, and support the implementation process. Let's discuss in chat as I have some queries to ask regarding the project to proceed further.
£36 GBP in 40 days
9.4
9.4

Hello, With expertise in JavaScript and PHP, our team has one goal in mind: to deliver reliable, optimized solutions that exceed your expectations. We understand the complexities of data and event tracking systems, such as GTM, Google Ads, GA4, Server-to-Server, meta Ads pixel, all of which you've highlighted as critical to your project. Our proficiency in these areas enables us to offer not just an audit of your existing data layer and GTM setup but actionable advice for necessary remediation work as well. As an experienced web service provider with a deep understanding of how data drives success in online marketplaces, we acknowledge the impact even a minor error can have on overall performance. That's precisely why our quality control is rigorous at every stage. The mistakes you've encountered with your current consultant are something we take seriously and vow not to repeat. Turning challenges into opportunities for growth has been a key driver in our journey towards excellence till now. Finally, fostering strong client relationships based on trust and clear communication is the foundation of our approach. We are always available for video calls or meetings if needed because ensuring you have updates on the progress and complete satisfaction with our work are as crucial as delivering successful results. So let us join hands to turn your vision into a data-driven reality that propels your transactional marketplace to new heights Thanks!
£36 GBP in 36 days
8.6
8.6

Excellent experience with similar projects---->>>Ecommerce GTM Audit & Tagging----------- I will surely achive your given goals with high QUALITY I am a CREATIVE/Multitalented GA4/GTM/PHP/Full stack developer having rich experience with all the latest technologies with so many successful Tasks. I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks!!!
£36 GBP in 40 days
8.1
8.1

Hello, I can help with your "Ecommerce GTM Audit & Tagging" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, javascript, google adwords, google analytics, conversion rate optimization, digital marketing, data analysis, data integration, data management, google ads, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Could we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "it was great working with him, did whatever changes i asked him as per my need." Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
£36 GBP in 1 day
7.5
7.5

Hello, I can help you audit and stabilize your entire tracking setup. I specialize in Google Tag Manager, GA4, Google Ads, Meta Pixel, Server-to-Server (sGTM/CAPI), and data layer implementation for transactional websites. I've resolved many cases involving duplicate events, missing conversions, incorrect event mapping, and unreliable tracking caused by previous implementations. ✔ Complete audit of your data layer, GTM, GA4, Google Ads, and Meta Pixel ✔ Identify root causes of duplicate or missing events ✔ Recommend and implement best-practice fixes ✔ Validate tracking accuracy across all platforms ✔ Clear communication throughout the project, including video calls and documentation My focus is to deliver a clean, reliable, and scalable tracking setup that you can trust for reporting and campaign optimization. I'm available to start immediately.
£40 GBP in 40 days
6.7
6.7

Hi there, GA tracking is exactly what my team specialises in. We are supporting multiple marketing agencies with our GA solutions including auditing GA accounts, tracking additional events, setting up marketing pixels including server-side tracking. Consent mode and much more. We have experience in working with a lot of different CMS platforms including Magento, Shopify, Wordpress, custom CSMs, etc We often help our clients to set up marketing pixels on their websites. For example, recently we helped a gaming company set up pixels for Facebook. Google, Bing, Tiktok and Reddit along with their GA4. We set up Server-side tracking as well. I have described this case in more detail in the attached brochure. Attached is a brochure describing several cases where we supported our clients with GA services. We have helped 100+ clients with their GA tracking. I would love to bring all of our experience into your project as well. Eugene
£65 GBP in 40 days
6.6
6.6

Hello!, I am a US-based senior software engineer(frontend, backend, ecommerce, etc) and I read your Ecommerce GTM Audit & Tagging project carefully. This is exactly the kind of data and event tracking work I’ve been doing for about 15 years across ecommerce, analytics, Google Ads/GA, and conversion-focused systems. I understand the goal is not just adding tags, but making sure your GTM, analytics, and conversion signals are clean, reliable, and useful for optimization. I’m the kind of person who digs into the details, because one missed event or broken attribution point can quietly hurt performance. My usual approach: 1) Audit current GTM / GA / Ads setup 2) Map key events and conversion paths 3) Fix data layer, tags, triggers, and parameters 4) Test tracking across devices/browsers 5) Document everything clearly so it’s maintainable Could you please clarify the following questions to help me better understand the project? 1) Which platforms are in scope right now: GA4, Google Ads, GTM, Meta, Shopify, custom PHP/JS? 2) Do you already have a tracking plan or event list, or should I create the full measurement framework? 3) Are there any specific conversion actions or attribution issues you want fixed first? Relevant work includes ecommerce tracking and GTM setups for several niche stores and SaaS sites, plus analytics cleanup work for checkout funnels and lead-gen flows.
£36 GBP in 5 days
6.8
6.8

Hi I understand you are looking for a highly experienced data and event tracking consultant to audit GTM, GA4, server-to-server, and pixel setups for a transactional marketplace, troubleshoot double or missing events, and guide remediation with clear, practical steps. You want hands-on help, strong communication, and collaborative sessions via video to get you from audit to a reliable, maintainable tracking implementation. I’m a results-driven developer with deep experience in analytics integration, GTM configurations, and data-driven marketing workflows. I focus on turning complex tracking setups into repeatable, reliable processes, with disciplined validation and clear, actionable next steps. My approach emphasizes practical fixes, transparent communication, and documentation that your team can reuse. For your project, I would begin with a structured audit of the data layer, GTM containers, GA4 configuration, server-to-server events, and pixel implementations across Google Ads and Meta. I will identify where events are duplicating or dropping and map gaps to business objectives, then deliver a remediation plan with concrete changes, validation steps, and rollback guidance. The delivery would include a prioritized action plan, a lightweight testing checklist, and a defensible data quality baseline so you can measure improvements Best, Justin
£60 GBP in 40 days
6.1
6.1

Incorrect tracking data is often worse than no data at all. Before making any changes, I'd focus on identifying why events are duplicating or failing, then create a clear remediation plan that protects the integrity of your analytics. Our software house provides Web/App Development, Design, SEO, and Content Writing. We don't just implement GTM or pixels—we build fully optimized, reliable tracking systems that provide accurate data for marketing and business decisions. We'll audit your data layer, GTM container, GA4, Google Ads, Meta Pixel, and server-to-server tracking, isolate the root causes of duplicate and missing events, and recommend a clean, scalable implementation strategy. Every fix will be carefully validated to avoid introducing new issues. We work on US hours and treat your project as a dedicated full-time commitment. Every deliverable is backed by our **100% satisfaction and performance guarantee**, and we're happy to collaborate over video calls throughout the engagement. Let's open a chat. I'll immediately share relevant tracking audit examples, discuss the best approach for your marketplace, and provide all personal details privately. **Waqas Ahmed**
£36 GBP in 40 days
6.3
6.3

Hi, I can help audit and fix your tracking setup so your marketplace data becomes accurate, consistent, and reliable for decision-making. I’ll review your data layer, GTM configuration, GA4 events, Google Ads tracking, Meta Pixel, and server-side implementations to identify duplicate or missing conversions. My approach is to first document the current setup, find the root causes behind tracking errors, then provide a clean remediation plan with proper testing. I’ll validate events through debugging tools, ensure correct attribution, and help establish a maintainable tracking structure moving forward. I’m comfortable collaborating through calls and explaining technical findings clearly to both technical and business teams. I’d be happy to review your current implementation and help restore confidence in your analytics data. Best Regards, Fizza Nadeem K
£36 GBP in 40 days
5.9
5.9

Hi — audit-and-remediation on a messy GTM/GA4/pixel setup is exactly the kind of work I like, because the problems you're describing usually have specific, findable causes rather than vague "tracking is broken" ones. Double-recorded events, for instance, almost always trace to one of a few things: a tag firing on multiple overlapping triggers, GA4 receiving the same event from both gtag and GTM, or — very common on marketplaces — the Meta pixel and Conversions API both sending a purchase without a shared event_id, so they don't deduplicate. Missing events tend to be dataLayer timing: the tag fires before the dataLayer push, or the variable isn't populated yet. My first step would be a structured audit — map every event from dataLayer through GTM to GA4/Ads/Meta, flag where it double-fires or drops, and give you a prioritised remediation list before touching anything live. Happy to jump on a video call to walk through findings. Similar tracking work in private chat. Can start right away. Regards
£36 GBP in 40 days
5.0
5.0

Are you currently using browser-side tracking only, or do you already have server-side GTM and conversion APIs implemented across your marketplace? Let's have a quick chat to review the issues and identify where the tracking breakdown is occurring. I have 7+ years of experience in GA4, Google Tag Manager, Google Ads conversion tracking, Meta Pixel, and server-side tracking implementations. My team can perform a complete audit of your data layer, GTM containers, pixels, and event setup, identify duplicated or missing events, and provide a reliable remediation plan with proper documentation. We are also comfortable collaborating through video calls and working closely with your development team. Please check our excellent Freelancer reviews and portfolio. Thank you, Jojo
£36 GBP in 40 days
5.1
5.1

You described the exact symptom that breaks marketplace economics: every GTM change creating duplicate or missing events so your Ads bidding, attribution and LTV calculations are unreliable. Fixing that requires both a clean event contract at the data layer and a defensible client/server tagging architecture so fixes do not reintroduce errors. Approach I will take First I will run a focused audit: inspect your dataLayer schema, GTM containers (web and server), GA4 event mappings, Google Ads conversion setup and Meta pixel/Server-to-Server dedup. I will identify duplicates, missing transaction IDs, inconsistent event names, and places where the current consultant’s changes likely cause race conditions or double-firing. Remediation will prioritize: 1) enforce a single source of truth for transaction_id and user_id, 2) implement client-side throttling and server-side dedup using the measurement protocol, and 3) tighten GTM triggers and tag sequencing plus an automated QA test plan and monitoring alerts so future edits are safe. I will join video calls with your dev and marketing teams to walk through fixes. Relevant project On LootEdge, a multi-vendor transactional marketplace, I audited and corrected checkout and payout events so conversions and risk rules aligned with actual settlement events. That work is directly comparable: multiple actors, staged payouts and dispute flows require exact event integrity for ad spend to be effective. Deliverables and estimate - Findings report with prioritized fixes and remediation plan (6–10 hours) - Implementation support and QA scripts (additional 8–30 hours depending on scope) - Video review sessions and handover Can you grant view access to your GTM container and GA4 property plus a staging test account so I can start a 60–90 minute audit and book an initial call?
£36 GBP in 7 days
4.8
4.8

Re: Ecommerce GTM & GA4 Audit My initial assessment for auditing and remediating your ecommerce tracking setup suggests a stack using a server-side GTM container and a robust data layer schema for optimal performance and accuracy. I have direct experience implementing server-to-server tracking. For instance, on a past project, I successfully migrated a high-traffic ecommerce site from a faulty client-side setup to a stable server-side GTM configuration. This eliminated data discrepancies and improved event tracking accuracy by over 95% by standardizing the data layer and implementing event deduplication. I propose the following key steps: 1. Conduct a comprehensive audit of your current GTM, GA4, Meta Pixel, and data layer implementation to identify all sources of error and data leakage. 2. Develop a detailed remediation plan, prioritize fixes starting with critical transaction tracking, and then implement the corrections in a staged, tested manner. Happy to elaborate on my approach. Regards, Anton K.
£36 GBP in 7 days
4.5
4.5

**Good day,** Can you share whether your marketplace uses client-side GTM only or both web and server-side GTM? Also, are the tracking issues affecting all platforms or specific conversion events? I can perform a comprehensive audit of your data layer, GTM, GA4, Google Ads, Meta Pixel, and server-to-server tracking to identify duplicate, missing, and misconfigured events. I'll provide a clear remediation plan, implement robust event tracking aligned with best practices, validate conversions end-to-end, and communicate findings through video calls to ensure your analytics and ad attribution are accurate and reliable. **Our current bid is placeholder but can be finalized thru' chat.** Regards, **Imran Arshad** **PS:** Portfolio can be furnished on your request.
£36 GBP in 40 days
4.7
4.7

Hi there, the key of this project is fixing tracking accuracy and building trust in your data again. I understood you need an experienced GTM, GA4, and pixel specialist who can audit the current setup, find issues, and provide reliable solutions. I would be happy to help improve your tracking foundation.
£36 GBP in 40 days
4.3
4.3

Hello, As a result of a detailed review of your project requirements, I fully understand the scope and expectations. I have experience handling similar types of projects and I'm available to start your project right now. I bring deep expertise in JavaScript, Google Analytics, Google Ads, Data Analysis, Data Integration, Data Management, and Conversion Tracking with over 10 years of experience. One of the key challenges in marketplace tracking is ensuring accurate event flow across the data layer, GTM, GA4, and ad pixels without duplicate or missing conversions. I will first audit your current implementation, identify tracking issues, and provide a clean remediation plan for reliable reporting. I have a couple of quick questions. • Which marketplace platform and tracking setup are you currently using? • Are your GA4, GTM, and Meta Pixel implementations using client-side tracking only, or do you already have server-to-server tracking in place? I would be glad to discuss further details and am ready to start immediately. Looking forward to hearing from you. Best regards, Carlos.
£36 GBP in 40 days
4.4
4.4

I’ll perform a focused audit of your ecommerce tracking stack for a transactional marketplace: data layer structure, GA4 event wiring, Google Tag Manager configuration, Google Ads conversions, Meta pixel/event tracking, and server-to-server flow. The goal is to pinpoint why events are double-firing or not recording, then produce a clean remediation plan. I’ll validate triggers, variable usage, naming consistency, consent/identity handling, and purchase/order event payloads end-to-end, browser to tag to analytics and ad platforms. You’ll receive: (1) a structured findings report with root-cause analysis, (2) a corrected event taxonomy and mapping for ecommerce actions, and (3) implementation guidance to ensure changes don’t introduce shoddy tag logic or duplicated events. Experienced with GTM debugging, event deduplication strategies, and ensuring transactional revenue events remain accurate across GA4 and ads.
£36 GBP in 32 days
4.1
4.1

As a seasoned Senior Full Stack Developer with an extensive breadth of technical skills, I am confident in my ability to execute an in-depth GTM audit and tagging strategy for your transactional marketplace. My experience includes working on numerous large-scale projects where optimizing data layer, GTM and pixel set-ups were critical to business success. I have demonstrated time and again an aptitude for problem-solving and meticulousness in implementation, ensuring near-zero errors and seamless event tracking. In addition to my technical capabilities, I pride myself on my interpersonal skills, which are so essential for effective collaboration. I am more than willing to jump on video calls or facilitate any communication channels that work best for you. Driven by the ambition to always deliver the best outcome, my goal is not just to fix any current issues but also lay out a viable roadmap for future scalability and optimization.
£36 GBP in 40 days
3.8
3.8

London, United Kingdom
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