Field Notice FN74203 lists Unity Connection 12.5(1) through 12.5(1)SU7 and 14 through 14SU2 as releases whose single inbox stops synchronizing with Exchange Online after February 2025, because Microsoft retired the Application Impersonation role.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Cisco Unity Connection
- Subsystem
- unified messaging
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 12.5(1) through 12.5(1)SU7; 14 through 14SU2
- Checked
- 2026-09-30
Sources
- Field Notice: FN74203 - Cisco Unity Connection Unified Messaging with Microsoft 365, Voicemail Stored in Cisco Unity Connection Will Not Sync with Exchange Online (Outlook) Email Inbox - Software Upgrade Recommended — Cisco Systems · tier 2 current vendor documentation · Products Affected; Problem Description
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up Unity Connection single inbox with Microsoft 365: source note unity-connection-single-inbox-setup-fn74203-affected. WarmTransfer. https://warmtransfer.net/knowledge/claims/unity-connection-single-inbox-setup-fn74203-affected
BibTeX
@misc{warmtransfer-claim-unity-connection-single-inbox-setup-fn74203-affected,
title = {Setting up Unity Connection single inbox with Microsoft 365: source note unity-connection-single-inbox-setup-fn74203-affected},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/unity-connection-single-inbox-setup-fn74203-affected},
note = {Source note unity-connection-single-inbox-setup-fn74203-affected, checked 2026-09-30}
}