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 ?
Windows Live Custom Domains causes Entra account lockout
Hi everyone, we have an on-prem AD connected with EntraConnect to EntraID since about 3 years. We only sync users and groups, no password hash or anything else. Since a few days 4 (out of about 250) users are constantly being locked out due to failed login attempts on an Application called "Windows Live Custom Domains". All 4 users are locked out not at the same time but within 30 min to an hour. This happens multiple times a day. As far as I was able to investigate Windows Live Custom Domains is a service no longer offered by MS or has been replaced with something else. How am I able to find out where this failed login attempts come from? If someone could point me in the right direction I would be very happy. Thanks Daniel
External ID login page not showing identity providers
I am trying to create a login flow using an custom OIDC identity provider, but the login page is just showing a prompt for email and password without a way to log in using the external identity provider. I have configured the identity provider in Entra, and created a new user flow that should include the identity provider. Additionally, when an application is added to the user flow, any login using that application shows an error saying "We couldn't find an account with this email address" when trying to log in with a user that was working previously. I'm not sure if this is related to the missing identity provider or not. Is there a way to fix this? Any help is appreciated!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 HubMicrosoft Entra Internet Access for iOS in Public Preview!
With the latest update to Microsoft Defender for Endpoint on iOS, Organisations licensed for Microsoft Entra Suite or Microsoft Entra Internet Access will have access to Microsoft's Secure Web Gateway (SWG) and traffic forwarding for HTTP/HTTPS traffic, with support for Web-Content Filtering. This has been a huge win for iOS Mobile Security. Previously, Defender for Endpoint on iOS has supported Phishing Protection, M365 Traffic, and Entra Private Access Traffic. Combined with Global Secure Access Threat Intelligence, which consumes indicators from Microsoft Intelligent Security Graph (ISG), Organisations can implement granular internet access controls on iOS devices with integrated, context aware protection against malicious threats. Excited to hear what you think! Release notes are available hereMicrosoft Entra Connect connecting always to old DC
We are planning on demoting old DC server. When doing checkups I noticed that Entra Connect keeps connecting to this specific DC we'ew planning to demote everytime it connect to Active Directory. So now I'm wondering does this need any additional configuration to keep sync working after DC Demote. I found out that there is option to "Only use preferred domain controllers" but I'm not sure if that's what I want do do. There were the red line is is the old DC to be demoted. "Only use preferred domain controllers" setting. If I enable this setting I got this kind of notice. I don't feel like this is the right way to do it so I canceled at this point.👉 Microsoft Entra in Action: From Conditional Access to Identity Protection
One of the areas I’m most passionate about is identity-driven security. Microsoft Entra makes it possible to apply Zero Trust principles directly at the identity layer. ⚡ Conditional Access – the backbone of modern access policies. 👤 Privileged Identity Management (PIM) – ensuring just-in-time, least privilege for admins. 🛡️ Identity Protection – risk-based policies to stop compromised sign-ins in real time. In my labs, I’ve seen how these features transform security posture without adding friction for users. Coming soon: - Step-by-step breakdown of a risky user detection scenario. - A visual guide to Conditional Access controls for critical apps. Would love to exchange insights with others experimenting in this space — what Entra features are you finding most impactful? #MicrosoftEntra | #ConditionalAccess | #IdentityProtection | #MicrosoftLearn | #PerparimLabs
The salt sizes required for signing with RSAPSS do not match those used by TPM.
Good evening everyone. I'm getting this error when I try to perform the first sync on my Windows Server 2022. I'm trying to sync the entire directory to manage my employees' licenses. I already have a tenant with users who can stay there without any problems. I had already synced the tenant with my old server in the past. For business reasons, the infrastructure has changed, and so has the server. In Entra ID, I don't see any old syncs, but in Admin Center, I do. Could this be the problem? Any advice is invaluable, as I'm at my wits' end.
