--- title: "Microsoft Entra enterprise applications for Opensense" slug: "opensense-enterprise-applications" description: "What the three Opensense enterprise apps in your Microsoft Entra tenant do (Email Signatures, Directory Sync, and SSO), and what removing each one breaks." updated: 2026-03-20T15:56:57.000Z canonical: "https://help.opensense.com/docs/opensense-enterprise-applications" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.opensense.com/llms.txt > Use this file to discover all available pages before exploring further. # Microsoft Entra enterprise applications for Opensense ## Overview When Opensense is integrated with your Microsoft 365 environment, three enterprise applications are installed in your Azure AD (Microsoft Entra ID) tenant. This article explains what each application does and what happens if it is removed. Use it as a reference when you see these applications in your tenant and need to check their purpose. All three applications are deployed during your Opensense onboarding, with the guidance of an Opensense Implementation Engineer.
Opensense Email Signatures
The Opensense Outlook Add-in.
Directory Sync v3.1
Read-only directory access that syncs user and group data into Opensense.
Opensense Single Sign-On (OIDC)
Single sign-on to the Opensense portal for administrators.
:::caution[Talk to Opensense before you remove an application] Don't remove any of these applications without first consulting your Opensense account team. ::: ## Opensense Email Signatures This application is the Opensense Outlook Add-in. It integrates directly with Outlook to apply centrally managed email signatures and is installed as part of your organization's email infrastructure during onboarding. Learn more in the [Outlook Add-in overview](https://help.opensense.com/docs/outlook-add-in-overview-1) article. :::danger[If you remove this application] The Outlook Add-in will be automatically removed from users' Outlook toolbar within 48 to 72 hours. Signature behavior for all scoped users will stop. ::: ## Directory Sync v3.1 This application enables **read-only** access to your Azure Active Directory to sync user and group data into Opensense. It supports [automatic directory syncs](https://help.opensense.com/docs/automatic-sync-frequency) so that employee profile data in Opensense stays current with your directory. It does not modify any data in Azure AD. :::danger[If you remove this application] Opensense will no longer sync employee data from your directory. Signatures will continue to apply but will reflect stale user data until directory sync is restored. ::: ## Opensense Single Sign-On (OIDC) This application enables single sign-on for Opensense administrators using the OpenID Connect (OIDC) protocol. It lets admins sign in to the Opensense portal with their Microsoft 365 credentials, providing secure authentication through your organization's existing identity infrastructure. This application supersedes the older Opensense SSO (SAML) method. OIDC is the current standard for all new and existing deployments. :::danger[If you remove this application] Administrators will no longer be able to sign in to Opensense with their Microsoft 365 credentials. ::: ## What's next - [How does Opensense work with Microsoft 365?](https://help.opensense.com/docs/how-does-opensense-work-with-office-365) - [Scoping Outlook Add-in users in the Microsoft 365 admin center](https://help.opensense.com/docs/clone-outlook-add-in-scope-users-for-opensense-in-m365-admin) - [Syncing extension attributes from Azure AD (Entra ID)](https://help.opensense.com/docs/syncing-extension-attributes-from-azure-ad)