Exchange Server OAuth certificates no longer need to be uploaded to the Microsoft-managed Teams Calendar Scheduler or Cloud Voicemail service principals; an expiring certificate is renewed only in Exchange Server.
Checked 2026-10-02
- Vendor
- Microsoft
- Product
- Microsoft Teams
- Subsystem
- Exchange Server integration
- Deployment
- hybrid
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Integration between Microsoft Teams services and Exchange Server — Microsoft Learn · tier 2 current vendor documentation · Opening Note; Step 5: Certificate management guidance
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Teams Phone voicemail that is not reached or not delivered: source note teams-voicemail-troubleshooting-no-oauth-cert-upload. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-voicemail-troubleshooting-no-oauth-cert-upload
BibTeX
@misc{warmtransfer-claim-teams-voicemail-troubleshooting-no-oauth-cert-upload,
title = {Troubleshooting Teams Phone voicemail that is not reached or not delivered: source note teams-voicemail-troubleshooting-no-oauth-cert-upload},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-voicemail-troubleshooting-no-oauth-cert-upload},
note = {Source note teams-voicemail-troubleshooting-no-oauth-cert-upload, checked 2026-10-02}
}