Set up a connection to Microsoft Dynamics 365 Business Central

Microsoft Dynamics 365 Business Central documentation: API guide, Authentication

1. Name (required): Name the connection.
2. Application (required, disabled): A reminder of the app you’re editing.
3. Environment name (required): Enter your Microsoft Dynamics 365 Business Central environment. (The environment name is shown at the left in your Business Central Admin Center.)
4. Borrow concurrency from (optional): Select another connection from the list....

4. Concurrency level (optional): Up to 25 allowed....
5. Sign in: Enter your Registered Email Id for Microsoft Dynamics 365 Business Central account.
   

6. Enter Password: Enter your password of your registered Microsoft Dynamics 365 Business Central account.