Trackless and a Fler shop
On hosted platforms, Trackless measures with a small browser snippet added to the page header. Such code cannot be added on Fler, so you cannot connect Trackless to a Fler shop yet. Below is what we found in the seller administration on 1 October 2026.
- Custom code: the Fler seller administration offers no field for custom tracking code.
- Google Analytics 4: Fler offers only its own Google Analytics 4 connection.
- What it measures: nothing on a Fler shop for now. You can connect your own site outside Fler.
Why it does not work
Trackless needs its tracking snippet in the page header, or a short code on the order confirmation. For measurement, however, the seller administration offers only the Google Analytics page, with these fields on its first tab:
- ID měření GTAG (the Google Analytics 4 measurement ID),
- Tajný klíč API Measurement Protocol (the Google Analytics 4 Measurement Protocol API secret),
- the older Universal Analytics ID,
- the Google verification string (GoogleSiteVerification).
The second tab, SEO nastavení (SEO settings), offers only the page description (META:DESCRIPTION). We did not find a field for custom JavaScript in the header or for code after a completed order in the seller administration (verified on 1 October 2026). Do not paste the Trackless snippet into the ID field, it is meant only for a Google identifier. If Fler allows custom code, we will update this guide.
What you can do
For a Fler shop, the only measurement route we found in the seller administration is the built-in Google Analytics 4 connection. If you also sell on your own site or store, you can connect Trackless there.
Do you also sell elsewhere?
For your own site or a store on another platform, you will find the steps in the connection overview.