Source note · Troubleshooting Teams phone number assignment errors
Set-CsPhoneNumberAssignment cannot set a phone number on a user or resource account whose phone number is set in on-premises Active Directory and synchronized into Microsoft 365; the number must first be cleared on-premises and that change allowed to sync.
Checked 2026-09-30
- Vendor
- Microsoft
- Product
- MicrosoftTeams PowerShell module
- Subsystem
- Set-CsPhoneNumberAssignment
- Deployment
- hybrid
- Region
- not restricted
- Release range
- Teams PowerShell module 3.0.0 or later
- Checked
- 2026-09-30
Sources
- Set-CsPhoneNumberAssignment (MicrosoftTeams) — Microsoft · tier 2 current vendor documentation · Notes, third paragraph
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Teams phone number assignment errors: source note teams-number-assignment-errors-onprem-synced-blocked. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-number-assignment-errors-onprem-synced-blocked
BibTeX
@misc{warmtransfer-claim-teams-number-assignment-errors-onprem-synced-blocked,
title = {Troubleshooting Teams phone number assignment errors: source note teams-number-assignment-errors-onprem-synced-blocked},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-number-assignment-errors-onprem-synced-blocked},
note = {Source note teams-number-assignment-errors-onprem-synced-blocked, checked 2026-09-30}
}