Why is the SKAdNetwork data different to what my attribution provider is reporting?

Some level of discrepancy between reported SKAdNetwork installs and attribution provider data is currently expected. This is due to several reasons:

• SKAdNetwork data can be impacted by source apps not properly integrating our SKAdNetwork IDs, and may also be affected by Apple’s privacy thresholds. There may also be a delay for us to receive the data from Apple. We expect SKAdNetwork data to become more accurate over time as source apps adapt to the new system.
• As iOS14.5 and beyond (and therefore Apple’s privacy changes) becomes more common, data from attribution providers will become less accurate as their ability to attribute at an individual level is diminished.