You are likely to get this error when you try to import Groups along with users from Azure AD into AssetSonar using the SCIM protocol. Please note that AssetSonar does not import Groups via SCIM protocol, but only the users. Since this error applies to Groups only, users from your Azure AD are provisioned into the AssetSonar account regardless.
You can avoid this error by disabling the provisioning of Groups within your Azure portal. To do so, select ‘No’ next to Provision Azure Active Directory Groups in the Mappings section when you’re provisioning users.
Learn more about provisioning users in Azure AD here.