Navigate to Administrator Tools > Integrations > REST API Integrations

You should see this screen:

Click on Create Integration

-
Enter the following Application ID: 3e77c84d-1571-4808-93e6-5de78274f932
-
Set the Learn User value to your administrator account name.
-
Click Yes in the next two fields
-
Click Submit
If you later choose to “Edit Integration” you will see the following screen:
