Expression Builder
The Expression Builder allows you to customize exactly when an Alert will trigger.
For example, the following Alert will trigger when a Pull Request is opened in any repo and has the following properties:
- Has a “bug” label
- Has a JIRA tag to the “FOO” project
- Was opened by either
mocktestuser1
ormocktestuser4
Example Alert Expression
![Choosing results for the PR Metrics explorer](https://gitdailies.com/docs/alerts/conditions/alert-expression-builder_hu84ce20222d8aa40f013fbf48e580067b_66391_429x1081_resize_q85_h2_lanczos_3.webp)