You can also show relationship s between multiple projects by linking tasks across projects. To enter inter-project dependency, you need the System ID of the project of the predecessor task. This can be found on the Project Details view of a project.
- Go to your project.
- Select the Interactive Gantt view from the View drop down, if its not already selected.
- Select the Columns button from the toolbar and add the Predecessor column to the grid, if not already selected.
- Select the task for which you need to add a predecessor.
- Type the ID of the predecessor task prefixed with the System ID of the predecessor's project in its Predecessor cell. So, the dependency you set in the predecessor column will look like 147497:34. The default dependency type is finish-to-start (FS). You can also indicate alternate dependencies (e.g. FF or SS) to model your project realistically.
The Inter project dependency lines on the project cannot be shown in the Gantt View.