Add account:
Asset Management- Account Auth - Promotion Platform - Add Account - Select "Unity Ads"
Select User Acquisition - Settings from the menu, and get the following:
Select User Acquisition - Stats API Access from the menu, and get the Report Key.
• API Key = Report Key
Select Projects - Service Accounts from the menu, enter the service account management page, and create a Service Account. Enter a name you can recognize and create the account. Note that you need to apply for the Service Accounts service on Unity first. For details, please contact your Unity side contacts.
Generate the API key in the Keys section. Please save the secret key when it's generated, as you will not be able to access it again.
After generating the main account, you need to check all the organization roles.
Note: The options in the red box are mandatory.