There are several differences in the aggregation methods between GA4 and the D2C dashboard.
User Count Aggregation Method:
- GA4: Aggregates the unique user count (Unique user id) over the specified period.
Example: If User A visits on the 1st and 2nd, the Total Users in GA4 would be 1. - D2C Dashboard: Aggregates the unique user count (Unique user id) daily and sums those figures.
Example: If User A visits on the 1st and 2nd, the Total Users in the D2C dashboard would be 2.
Differences by Aggregation Level:
- GA4: Aggregates the unique user count (Unique user id) regardless of the aggregation level.
Example: If User A visits HS and MS, the Total Users at the BU level in GA4 would be 1. - D2C Dashboard: Aggregates the unique user count (Unique user id) daily based on predefined criteria (e.g., LG.com, BU, Division, Channel, etc.) and sums those figures.
Example: If User A visits HS and MS, the Total Users at the BU level in the D2C dashboard would be 2.
In conclusion, GA4 counts unique users regardless of the period and aggregation interval, while the D2C dashboard aggregates and sums the counts based on predefined criteria on a daily basis, leading to differences in figures.
Additionally, the dashboard applies mapping logic based on its criteria, which may result in slight discrepancies in the numbers. (e.g., OBS BU mapping, Division mapping, etc.)