Outlook: Outlook for web – new application ID
From Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.Rollout
Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".
What the notice says
Microsoft’s text, safely structuredOutlook for web will migrate to a new appID. The existing Microsoft-owned appID used by OWA is changing in preparation for OWA’s authentication platform migration to a SPA auth model using MSAL.
When this will happen
Standard Release: We will begin rolling out the first half of Calendar year 2024 and expect to complete by the 4th quarter of calendar year 2024.
How this will affect your organization
What are the appIDs involved?
- OWA existing appID: 00000002-0000-0ff1-ce00-000000000000
- OWA new appID: 9199bf20-a13f-4107-85dc-02114787ef48
What you need to do to prepare
No action required. This is primarily a back-end change, and we are offering this awareness as the new appID will be visible in security reports.
What changed
Between archive captures, newest first… for OWA’s authentication platform migration to a SPA auth model using MSAL.
When[When this willhappen:happen:] Standard Release: We will begin rolling out the first half of Calendar … and expect to complete by the 4th quarter of calendar year 2024.How[How this will affect yourorganization:organization:] What are the appIDs involved? OWA existing appID: 00000002-0000-0ff1-ce00-000000000000 OWA new appID: 9199bf20-a13f-4107-85dc-02114787ef48What[What you need to do toprepare:prepare:] No action required. This is primarily a back-end change, and we are …- · first version seen
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