Can External ID (CIAM) federate to an Azure AD/Entra ID tenant using SAML?
What I'm trying to achieve I'm setting up SAML federation FROM my External ID tenant (CIAM) TO a partner's Entra ID tenant (regular organizational tenant) for a hybrid CIAM/B2B setup where: Business users authenticate via their corporate accounts (OIDC or SAML) Individual customers use username/password or social providers (OIDC) Tenant details / Terminology: CIAM tenant: External ID tenant for customer-facing applications IdP tenant: Example Partner's organizational Entra ID tenant with business accounts Custom domain: mycustomdomain.com (example domain for the IdP tenant) Configuration steps taken Step 1: IdP Tenant (Entra ID) - Created SAML App Set up Enterprise App with SAML SSO Entity ID: https://login.microsoftonline.com/<CIAM_TENANT_ID>/ Reply URL: https://<CIAM_TENANT_ID>.ciamlogin.com/login.srf NameID: Persistent format Claim mapping: emailaddress → user.mail Step 2: CIAM Tenant (External ID) - Added SAML IdP (Initially imported from the SAML metadata URL from the above setup) Federating domain: mycustomdomain.com Issuer URI: https://sts.windows.net/<IDP_TENANT_ID>/ Passive endpoint: https://login.microsoftonline.com/mycustomdomain.com/saml2 DNS TXT record added: DirectFedAuthUrl=https://login.microsoftonline.com/mycustomdomain.com/saml2 Step 3: Attached to User Flow Added SAML IdP to user flow under "Other identity providers" Saved configuration and waited for propagation The problem It doesn't work. When testing via "Run user flow": No SAML button appears (should display "Sign in with mycustomdomain") Entering email address removed for privacy reasons doesn't trigger federation The SAML provider appears configured but never shows up in the actual flow Also tried using the tenant GUID in the passive endpoint instead of the domain - same result My question Is SAML federation from External ID to regular Entra ID tenants actually possible? I know OIDC federation to Microsoft tenants is (currently, august 2025) explicitly blocked (microsoftonline.com domains are rejected). Is SAML similarly restricted? The portal lets me configure everything without throwing any errors, but it never actually works. Am I missing something in my configuration? The documentation for this use case is limited and I've had to piece together the setup from various sources. Or is this a fundamental limitation where External ID simply can't federate to ANY Microsoft tenant regardless of the protocol used?Add members to a dynamic sec-grp excluding users with a specific "serviceplanid" assigned license
Hello, I am trying to populate dynamically a security group that shoud contain all members with a specific attribut value and trying to filter the groupe membership based on a serviceplanId assigned to members (user.extensionAttribute9 -startsWith "83") -and (user.accountEnabled -eq True) -and (user.mail -ne null) -and (User.AssignedPlans -any (assignedPlan.servicePlanId -ne "818523f5-016b-4355-9be8-ed6944946ea7" -and assignedPlan.capabilityStatus -eq "Enabled")) How to exclude members with the ServicePlanId : "818523f5-016b-4355-9be8-ed6944946ea7" from the list of the groupe members ?
Exclusion of Copilot App (for O365) from Conditional Access Policies does not work
Hi, we've built a Conditional Access Policy in EntraID that forces MFA for all Cloud Apps. We want to exclude "Microsoft 365 Copilot"/ "Copilot App" so no Reauthentication is necessary for Copilot in the frame of accessing O365 content. Exclusion has been made for a range of identified Copilot applications that are shown in Sign-in logs. However, reauthentication still pops up. No other conditional access policy is applied. It's this specific policy that requires reauthentication. What's the reason why the exclusion does not work? Is there something else necessary to be taken into consideration so the exclusion works fine? Many thanks in advance!Join Merill Fernando and other guests for our Identity and Network Practitioner Webinar Series!
This October, we’re hosting a three-part webinar series led by expert Merill Fernando for Identity and Network Access practitioners. Join us as we journey from high-level strategy to hands-on implementation, unifying identity and network access every step of the way. Each session builds on the last, helping you move from understanding why a unified approach matters to what are the foundations to get started, and finally to how to configure in practice. The goal is to equip you with actionable skills, expert insights, and resources to secure your organization in a unified, Zero Trust way. Register below: Identity and Network Security Practitioner Webinar Series | Microsoft Community HubExclusion of Microsoft Edge Browser from Conditional Access Policies does not work
Hi, we've built a Conditional Access Policy in EntraID that forces MFA for all Cloud Apps. We want to exclude Microsoft Edge Browser so no Reauthentication is necessary for MS Edge Browser. Exclusion has been made for the "Microsoft Edge" application with the following App ID: ecd6b820-32c2-49b6-98a6-444530e5a77a However, reauthentication still pops up. No other conditional access policy is applied. It's this specific policy that requires reauthentication. What's the reason why the exclusion does not work? Is there something else necessary to be taken into consideration so the exclusion works fine? Many thanks in advance!Shape the future of our communities! Take this survey to share your practitioner insights. 💡 ✏️ 🔓
This brief survey explores your experiences and preferences in professional identity and network security communities. Your feedback will help shape our team's approach to future community resources and engagement opportunities. Take the survey here! For any questions about this survey, please contact dansantos@microsoft.com. Privacy Statement: https://go.microsoft.com/fwlink/?LinkId=521839
Cloud-First Attribute Ownership for Synced Users in Entra ID Is Not Supported
📝 Description As an enterprise architect working to modernize identity provisioning, I’ve encountered a major limitation in Microsoft Entra ID’s hybrid identity model. While Microsoft promotes a cloud-first strategy, the current architecture forces reliance on on-premises Active Directory for attribute ownership when users are synced via Entra Connect. Key issues: Directory extension attributes, even when created in the cloud, are read-only for synced users. Custom security attributes are not queryable and cannot be used in dynamic groups or claims. There is no supported mechanism to allow cloud apps (e.g., Workday provisioning) to own or update specific attributes for synced users. Breaking sync to convert users to cloud-only is disruptive and not scalable for large enterprises. This creates a conflict between cloud-first provisioning goals and technical limitations, making it difficult to fully transition away from on-prem AD. ✅ Requested Improvements Attribute-Level Ownership Delegation Allow cloud apps to own and update specific attributes for synced users, even if the user is still managed by AD. Writable Directory Extensions for Synced Users Enable Graph API write access to cloud-created directory extensions for hybrid users. Dynamic Query Support for Custom Security Attributes Make custom security attributes usable in dynamic groups, claims, and app filtering. Clear Guidance and Tooling for Cloud-First Identity Models Provide supported patterns and tools for transitioning identity provisioning and attribute management to the cloud. 🙏 Why This Matters Organizations are actively trying to reduce reliance on legacy infrastructure and embrace cloud-first identity. The current limitations in Entra ID make this transition unnecessarily complex and inconsistent with Microsoft’s cloud-first messaging. ---copiloted response for sure after many days of trying to work a solution that does not create more tech debt...Entra App Gallery required for Excel AddIn
Hi, We have an Excel Addin published to Microsoft AppSource: https://appsource.microsoft.com/en-us/product/office/WA200009029?tab=Overview The Excel Addin uses Entra ID to obtain an OIDC token to securely / seamlessly access MS 365 SharePoint on behalf of the user. In order to achive this the Entra ID subscription needs the TR4E application registered as an Enterprise Application / App Registration. My question is whether I need to submit the TR4E application separately to the Entra App Gallery, so it can be installed by the Entra ID admin - or will the registration in Entra ID happen automatically when a new user first tries using TR4E? I note that MS has suspended new application submissions for Entra App Gallery, which means our customers would need to manually create the Entra ID Enterprise Application (which is not a great experience). Cheers, Andrew
