To be able to send messages to CC Partners through API calls, you need to connect to one or more tenants. API calls enable you to send CC messages to CC Partners in different databases as well as those contained in the same database as your company.
...
For the Basic authentication you need to provide the tenant's API Base URLalong with Username and Password. (How to find this API Base URL??)
For the OAuth authentication you need to provide the Tenant ID, Client ID and OAuth Secret.
(Need to register the application in Azure AD, retrieve an Entra ID and OAuth secret, and then register the App ID in BC in “Microsoft Entra Applications”.) - link to Microsoft documentation?
Then use the action “Update Companies” to retrieve the companies accessible through the tenant.
...