1. In order to get your Google Workspace login details, you need to login to your client area 1st. You can log in to your client area using the below KB,
2. Then go the services and Click on Google Workspace.
3. After click on Google Workspace, click on Login details. There will be the login credentials of your Google Workspace accounts.
4. Then login to the https://admin.google.com using the same login email address and password.