Reliable tracking helps advertisers understand performance, but no tracking setup creates perfect attribution.
Browser pixels capture important events but can lose signals because of consent choices, browser restrictions and technical errors. Conversion APIs and server-side setups can improve event delivery when implemented with proper consent and data governance.
Define events before installing tools. Use stable names, validate deduplication, test purchase values and currencies, and document which system is the source of truth. Compare platform reporting with analytics, CRM and payment data.
The objective is not to force every system to report identical numbers. It is to create sufficiently reliable evidence for budget and creative decisions.