This article consists of the instructions on how to correctly setup HENNGE Secure Transfer so that it is fully functional within your Google Workspace domain environment. After completing this setup, you will be able to start using the function of HENNGE Secure Transfer.
When using HENNGE Access Control, you don't have to do it.

Step 1 - Please log on to the Google Workspace Admin Console ( admin.google.com ) with your Google Administrator account. 

Step 2 - Please click on [ Security ] > [ Overview ] as shown as below.

Step 3 - Please click on [ API controls ].

Step 4 - In the API Controls settings, please check the option [ MANAGE DOMAIN WIDE DELEGATION ].

Step 5 - Please click on [ Add new ] as shown below.

Step 6 - Please refer to your Connection Settings document, and input the details below into the "Client ID" and "OAuth scopes(comma-delimited)". 

※ Client ID : Client Name 

※ OAuth scopes : One or More API Scopes

Step 7 - Please check the API client information on the screen.

Step 8 - Please access the following URL and check if you can log on.

https://upload.hdedrive.com/gaoidc