Product & Analytics / Growth
Weekly Active Users WAU (also "weekly actives", "WAP")
How many distinct people used the product across a seven-day window.
The fork, why two teams get different numbers
The seven days are either a FIXED calendar week or a ROLLING window, and both hide sub-forks.
In the Metric Library
- The full fork, both definitions worked all the way through
- The trap that makes the number lie, on a real export
- Every formula variant, spelled out
- The reconciliation anchor, what to tie it to and when to refuse
Reference: Product-analytics convention (no governing body); ISO 8601 week-date definition cited as reference; IAB/MRC audience-measurement conventions