Step 1: Go to the TMS URL: 

Step 2: Choose the correct account

Step 3: Click on the API & Integration Center menu item.

Step 4: Click on the Integration Center sub-menu item.

Step 5: Click on the “Add New” button. 

Step 6: Give the integration group a name and choose an Authentication Type.

Step 7: Fill in the details of the Authentication Type

Step 8: Click “Save” to save the group.