Create and Use 'Service Principal' at Azure

Service principle will furnish you with a client ID and client secret or certificate, analogous to user identification and password. The service principal will be established in Azure Active Directory to facilitate authentication.

 

What Service Principal Requires

• You need to use Rbac to give them the right kind of access. 
• You need to provide the user permission at both the subscription and service levels, 
• At the subscription level, there is also a client ID to connect Azure services to any third-party program. 
• Even though Azure DevOps is a Microsoft product, you should think of it as a third-party tool.