How to obtain detailed role permissions from API?
Verify the API END Point https://{Orch-url}odata/Roles?&$expand=Permissions&$orderby=DisplayName asc
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How to narrow down the scope by role id and then expand to show permissions?
Verify the ENDPOINT URL : https://{Orch URL }/odata/Roles(16)?%24expand=Permissions . That will provide all the roles permission where 16 is the role ID.
Note: Team need to replace the role ID.