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Conversion tracking discrepancies are normal now because every platform uses different attribution windows and iOS privacy changes mean like 30-40% of conversions just don’t get tracked properly on the platform side anymore… this isn’t something you can fix by debugging GTM endlessly.
The solution is picking one source of truth… usually GA4 for total conversions… and then using platform reporting for optimization decisions not accuracy.
Meta and Google don’t need perfect tracking to optimize, they need directional signal. I manage accounts spending six figures monthly and we stopped trying to reconcile platform numbers years ago because it’s impossible with current privacy restrictions.
