Google Ads and GA4 tracking for custom SaaS
With full control, the Google side becomes a design question rather than a technical one: which milestone is the bidable conversion, given that it has to sit inside the import window and produce enough volume for Smart Bidding to learn from.
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custom SaaS + Google · what breaks
What goes wrong on custom SaaS
- 01
Nothing exists unless specified
No theme, no plugin, no defaults. An unspecified event doesn't fire.
- 02
The click ID stored in a cookie
Which is long gone by the time the card is charged.
- 03
Conversions weeks past the click
Straining every import window.
- 04
Signups optimized instead of revenue
Because signups are the only thing anyone wired.
custom SaaS + Google · the fix
What changes — custom SaaS + Google
Events emitted when they become true
Server-side, from your own database.
Click ID on the account record
Permanent, and referenced for the customer's life.
A bidable milestone inside the window
Chosen deliberately.
custom SaaS + Google · architecture
How the Google destinations behave on custom SaaS
A design question rather than a technical one.
- 1
Measure median click-to-payment
Against the 90-day import window.
- 2
Pick the bidable milestone from that
Activation if payment is too slow or too sparse.
- 3
All four click parameters captured
At landing, before signup.
- 4
Real amounts, not projections
Each payment as it clears.
- 5
Counting set to every
Recurring payments are recurring conversions.
custom SaaS + Google · diagnose
Where custom SaaS tracking breaks, in diagnostic order
Each check rules out a class of cause, so by the last one there is usually a single explanation standing.
- 01
Check what share of accounts carry a click ID
The ceiling on everything.
- 02
Check where it's stored
A cookie won't survive to first payment.
- 03
Measure median click-to-payment
Against the import window.
- 04
List which lifecycle events are actually emitted
Usually signup and nothing else.
- 05
Compare channel rank by signup and by revenue
The gap is the value of doing this.
custom SaaS + Google · prove
The QA evidence — custom SaaS + Google
Run on custom SaaS specifically, on a live conversion rather than in preview mode.
Source of truth
your own billing and account records
- Click ID present on a live account record after signup.
- Each lifecycle event confirmed emitting from the application.
- Deduplication keys confirmed stable per event type.
- Collected revenue reconciled against your billing for a closed month.
- Churn confirmed reversing reported value.
- Reconciled over a fully closed window, matched per record rather than on totals.
- Re-checked 30 days later, and after any platform update.
custom SaaS + Google · free audit
What we check in the free audit
- Check what share of accounts carry a click ID
- Check where it's stored
- Measure median click-to-payment
- List which lifecycle events are actually emitted
- Compare channel rank by signup and by revenue
Checked against
your own billing and account records
Free30 minutesNo obligation
custom SaaS + Google · when not to buy
When you don't need this on custom SaaS
Worth reading before you buy anything, from us or anyone.
- If your product converts in-session — a paid signup with an immediate charge — this is a purchase event and none of the lifecycle complexity applies.
- Your own engineers can build all of this. It's your codebase and there are no platform constraints. What we'd add is the event design and the reconciliation, not the code.
- If nobody has written an event specification, start there rather than with tags. It's the cheaper half and it's where the expensive mistakes get made.
- Measure click-to-payment before designing anything. If it exceeds the import window, the whole design changes.
custom SaaS + Google · what we deliver
What gets built for Google on custom SaaS
GA4 ecommerce events in the recommended shape
Correct names, transaction_id present, currency per order, an items array that agrees with the value.
Click identifiers captured and persisted
gclid, gbraid and wbraid — not just the first, because iOS traffic arrives with the others.
Enhanced Conversions from the data layer
Not from CSS selectors, which break on every redesign silently.
Conversion action settings reviewed
Counting, primary status and attribution window — free to change and more consequential than most tag work.
Written guarantee
95%+ tracking accuracy
Measured against your own billing and account records. Miss it and we keep working at no cost.
Pricing
Pick the package that fits your ad spend
Browser-side starter
$400One-time fee · lifetime ownership
Repairs and verifies the browser-side setup you already have, on a live conversion. Honest about its ceiling on this platform.
- Root cause fixed, not worked around
- Verified on a live conversion
- Reconciled against your own records
- Written handover
1st-party server-side
Recommended$800One-time fee · most popular
Money events sent from your own records through a first-party container on your subdomain, so the browser can no longer lose them.
- First-party server container on your own subdomain
- Money events from your records, not the browser
- Deduplicated on a shared event ID at every destination
- First-party cookies beyond Safari's 7-day cap
- 95%+ accuracy and 8+ Meta EMQ, guaranteed in writing
Full 1st-party stack
$1,800One-time fee · lifetime ownership
Every paid channel server-side plus the offline loop, with monitoring so the next break surfaces in days.
- Everything in 1st-party server-side
- Pinterest, Snapchat, Reddit and LinkedIn CAPI
- CRM and offline conversion loop
- Refunds and cancellations corrected wherever each platform allows it
- Monitoring on every destination
FAQ
custom SaaS + Google questions, answered
Measure median click-to-payment. If it's inside 90 days with enough volume, use first payment. If not, move upstream to activation.
No. Send each payment as it clears. Projections reward channels that bring customers who leave.
Every, for recurring revenue.
All four. Capture at landing, before the signup flow begins.
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Get Google Ads and GA4 right on custom SaaS
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