# Description
Adds 2 tests for KPIs to:
1. Check that the values observed in the last run for the dimensions other than Global are consistent for additive metrics. Consistent does not mean exact, though
2. Check that the values observed in the last run for Global dimension are similar to what was observed previously, to raise an alert in case of outliers. This one is tricky because there's possibilities to have false positives, so extensive documentation on the test and parameters has been provided.
Note: This runs well targeting production. It also detects the cancelled bookings issue if it was supposed to run on 31st of August. Once an alert is raised, since it only takes into account the last update, usually will not raise it in the next day.
# Checklist (does not apply)
- [ ] The edited models and dependants run properly with production data.
- [ ] The edited models are sufficiently documented.
- [ ] The edited models contain PK tests, and I've ran and passed them.
- [ ] I have checked for DRY opportunities with other models and docs.
- [ ] I've picked the right materialization for the affected models.
# Other
- [ ] Check if a full-refresh is required after this PR is merged.
Adding specific business tests for kpis
Related work items: #20824
