Team Foundation Server Extensions for SharePoint Products
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TFS 2018 and later versions no longer support native integration with SharePoint products. If you're planning to upgrade to TFS 2018, read About SharePoint integration to learn about the options available to you.
The Team Foundation Server Extensions for SharePoint Products include site templates to which the process templates for TFS refer when team projects are created. You must install the extensions so that team project portals will appear and function correctly.
Without these extensions, you cannot add a SharePoint Web application to Team Foundation Server and have SharePoint sites created automatically. No Web applications will be available for the team project collections that you create. If no Web applications are configured for your TFS deployment, your users will not be able to automatically create a team project portal when they create a team project.
Additionally, your users in your collection will not have a Documents folder available for their team projects in Team Explorer, and they will not be able to automatically use document libraries for process guidance for the project.
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You can manually configure individual team projects to use SharePoint site resources even if no SharePoint Web applications are configured for TFS. For more information, see Configure or add a project portal.
When you create a team project, you have an option to include a SharePoint portal. If you choose this option, then the system activates certain dashboard features according to the process template selected. To learn more, see Define the project portal plug-in for a process template.