A build's reason is the way in which the build was triggered.
There are a number of methods by which Bamboo can 'trigger' (i.e. execute) a Plan's build,
- Build Strategy:
- Code updated — a Plan's build is triggered whenever one or more authors checks in code.
- Scheduled build — a Plan's build is triggered at scheduled times or specified time intervals.
- Manual build — a Plan's build is only ever triggered manually.
- Initial clean build — a Plan's build is triggered immediately after a new Plan has been created.
- Build Dependency:
- Dependency — a build can be triggered whenever another Plan's build is successfully completed.
The trigger method for a Plan's build is listed in the 'Reason' column on the Dashboard.
Note that these trigger methods can only be configured by a Bamboo administrator. For more information please see Triggering a Plan Build.