Most apps set up their MMP once, and never look back.
But misconfigured events, unaligned postbacks, and broken attribution windows silently destroy campaign performance every day.
In our audits, 80% of setups had critical gaps:
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Revenue misattributed (or double-counted)
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SKAN postbacks mapped wrong
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Missing cost data or duplicate events
👉 The result? Wasted ad spend. Confused reporting. Poor optimization.
This checklist fixes that