I'm in the course of "Senior System Architect (7.1)".
On the "Orientation - Completeing the Exercises" page, there is the sentences below;
3. Add the solution branch to the application record using the Add Branch button. The name of the branch is the same as the name of the solution file. For example, if the name of the solution file is CaseLifeCycle.zip the name of the branch is CaseLifeCycle.