A specialist in GTM / Google Ads / web analytics is needed for a one-time diagnosis.

PHP, Web Programming — incorrectly specified categories?

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There is an online store on Khoroshop.
The site has GTM, which captures advertising data and transmits it to the CRM through our server script.

Problem

Some orders arrive in the CRM without gclid and other parameters. (Client User Agent,fbc and other attributes.)

In our sample, about 18–19% of orders come without this data, and in most of these cases, other custom fields are also missing.

What we already know

utm_* in the CRM is most often present, added by GA4 through the CRM
separately, we have custom logic through GTM → server → Asteril CRM
there is a suspicion that the problem is not in one field, but that in some orders the entire custom update does not trigger or does not reach

What is needed

help to find where exactly the attribution data is lost
determine where the weak point is: GTM, cookie/storage, thank-you page, server script, or CRM entry
possibly suggest a practical solution on how to reduce data loss

What we have for verification

screenshots / access to GTM
examples of orders where custom data is empty
exports from CRM
information on the current data transmission logic

What we want to receive

a clear conclusion, where the data is lost
a short list of checks and conclusions
recommendations for correction

In your response, please write:

Have you had experience with GCLID, GTM, offline conversions, transferring attribution to CRM
Have you worked with Khoroshop or custom data transfer
How would you approach the diagnostics
Cost and timelines

Update #1 from 13 April

Need a specialist for setting up logging of data loss in the chain website → script → CRM.

The current task is not to fully fix the problem, but to understand at which stage the data is lost. It is necessary to review the current data transmission logic and set up logging at key stages: what was received, what was sent, what arrived, where fields became empty or were lost.

Looking for a person with real practical experience in JS, GTM, data transmission to CRM, and debugging such integrations.

Important: if you are working solely relying on GPT without your own experience in similar tasks - please do not waste either your time or mine.

Proposals 19 Rejected 3 Discussions 2

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Vladimir Y.
Ukraine

Projects 42
Rating 5.0
Rating 1 072

A specialist in GTM / Google Ads / web analytics is needed for a one-time diagnosis.

Problem

What we already know

What is needed

What we have for verification

What we want to receive

Proposals concealed

Proposals are currently absent

Proposals concealed

Current freelance projects in the category PHP

Support for the store on OpenCart

Integration of ChoiceQR → KeyCRM via API

Urgent project — Senior WordPress/WooCommerce/Stripe developer to complete VAT setup and

WordPress Developer: Greenhouse Harvest API V2 to V3 Upgrade

Light application