To check a Conditional Access sign-in failure manually, Microsoft directs the admin to the Entra sign-in logs, User sign-ins (non-interactive) tab, filtered to Status Failure and Application Teams, then to entries for Microsoft Teams, Microsoft Teams Service or Microsoft Teams - Device Admin Agent, then to the sign-in error code and failure reason on Basic info, then to the Conditional Access tab for policies showing Failure.

Checked 2026-09-30

Vendor
Microsoft
Product
Teams phones
Subsystem
Microsoft Entra sign-in logs
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-30
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Troubleshooting Teams phone sign-in and provisioning: source note teams-phone-sign-in-troubleshooting-signin-log-check. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-phone-sign-in-troubleshooting-signin-log-check

BibTeX

@misc{warmtransfer-claim-teams-phone-sign-in-troubleshooting-signin-log-check,
  title  = {Troubleshooting Teams phone sign-in and provisioning: source note teams-phone-sign-in-troubleshooting-signin-log-check},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/teams-phone-sign-in-troubleshooting-signin-log-check},
  note   = {Source note teams-phone-sign-in-troubleshooting-signin-log-check, checked 2026-09-30}
}

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