Promoting moves items upwards through the Global Stage Lifecycle (GSL).
If an associated deployment area for the project or stream has the Deploy by Default option set, the deployment will occur automatically upon promotion; you do not need to have the Deploy privilege. If there are other deployment areas associated with the project or stream, you can also deploy to those areas if you have the necessary privilege.
You can promote through more than one stage in the GSL in the same operation.
Note that promotion can also take place when actioning items, requests, or baselines if the next lifecycle state has been associated with a deployment stage in the GSL. If there are any default areas associated with the project/stream for that stage, the item files will also be automatically deployed to those areas.