Google Analytics Referral Exclusions and Cross-Domain Setup Audit
Check that payment and subdomain journeys keep one session.
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Audit session continuity in Google Analytics. Domains and subdomains used, payment providers, login providers, and observed self-referrals and sessions that break at checkout: [DOMAIN_SETUP]. Draw the user journey in words from first landing to completed action, listing every domain and subdomain the visitor passes through, including the payment provider and any login service. At each hand-over point state what should happen to the session and what you observe. Check which referrals should be excluded and whether cross-domain measurement is configured where needed [VERIFY], and the effects: inflated sessions and lost sources. Count the share of conversions credited to the payment provider; 220 of 640 is 34 percent, which would indicate a break. Test with one real journey in a clean browser and list the evidence: the source of the final conversion, the number of sessions created, and whether the original campaign is retained. Compare conversion counts with business records. Record a baseline before changing anything, and recommend the settings to review, who can change them, and a before and after comparison over two weeks. Frame figures as examples and flag unverified platform details [VERIFY].
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