Team Foundation Server Data Source Credential
Creating a Team Foundation Server Data Source Credential
[Administrator]
The Administrator can create the data source credentials by selecting the 
(Create new credential) button on the Manage Data Source Credentials page.
Select the Azure DevOps Server (TFS) card
Enter a Username, Token and the TFS Callback URL
- Select Next
Give the new credential a name
- Assign it to applicable managers
- Select Create