cannot link tasks in Gantt View

Document ID : KB000109970
Last Modified Date : 07/08/2018
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When viewing a project in Gantt view, I am unable to link.  I can see the link icon because the chart, however it is grayed out and unable to click it.
All supported PPM environments
There were changes made to the project causing it to be in edit mode.  If it is in edit mode, you will not be able to link.
Save project.  The link icon will become visible and you will be able to link.