Embedded API - get report object without workspaceId

[Anonymous]

Is it possible for me to retrieve a report object from the API without passing in a workspaceId and while using a service principal to authenticate? When I try to call:

client.Reports.GetReportAsync(reportId);

I get a 403 saying the application is not permitted.

However using the same service principal I am successfully able to make a call and retrieve the report using:

client.Reports.GetReportInGroupAsync(WorkspaceId, reportId);

Is there a solution or workaround so that I do not need to provide the workspaceId with each request I make to my service? The service principal has been given access to the workspace already.

Thanks