Integration between Microsoft Teams services and Exchange Server

Publisher

Microsoft Learn

URL

https://learn.microsoft.com/en-us/skypeforbusiness/deploy/integrate-with-exchange-server/oauth-with-online-and-on-premises

Published

2026-09-10

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• For Exchange Server mailboxes, Cloud Voicemail integration requires an Exchange partner application named CloudVoicemail with application identifier db7de2b5-2149-435e-8043-e080dd50afae, linked to the TeamsIntegration mail user. in context
• Microsoft has been progressively disabling the legacy Skype for Business Online first-party application (00000004-0000-0ff1-ce00-000000000000) since 13 October 2025, replacing it with dedicated Teams Calendar Scheduler and Cloud Voicemail applications. in context
• 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. in context
• Microsoft's check for Cloud Voicemail integration with an on-premises mailbox is the out-of-office greeting: if the CloudVoicemail partner application is not working, the regular greeting plays instead of the Outlook automatic-replies greeting. in context

Cite this source record

APA

WarmTransfer. (2026, September 10). Integration between Microsoft Teams services and Exchange Server. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-teams-exchange-server-oauth

BibTeX

@misc{warmtransfer-ms-learn-teams-exchange-server-oauth,
  title  = {Integration between Microsoft Teams services and Exchange Server},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-teams-exchange-server-oauth},
  note   = {Microsoft Learn, accessed 2026-10-02}
}