Use Cases / GTM ↔ GA4 parity
GTM ↔ GA4Prove GTM and GA4 still agree.
Two systems, two teams, two change logs. The truth is in the gap between them.
The situation
Drift with no single owner
- An analyst marks a new conversion in GA4 — but nothing in GTM is sending it.
- A contractor pauses a “legacy” tag that was still the only source of a live conversion.
- A tag and its conversion are named slightly differently. Reporting silently splits.
- Every one of these looks fine in isolation. Only lining the two systems up reveals them.
With ODDVX
One cross-system check
Run it per brand
ODDVX lines up what GTM is sending, what GA4 is set to count, and what GA4 has actually received lately.
Read the findings
Conversions with no tag. Tags firing that nobody's counting. Name mismatches. Conversions that quietly stopped being conversions. Inconsistency across brands.
Fix at the right layer
Some fixes belong in GTM, some in GA4. Each finding tells you which. Export it into the backlog.
Make it a monthly check
Parity isn't a one-time cleanup — it decays. Re-run it on a cadence and drift never gets more than a month old.
What it uses