MC909164 – (Updated) Microsoft Exchange Online: New fields for Exchange mailbox schema

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check before: 2024-11-01

Product:

Exchange, Microsoft 365 admin center, Microsoft 365 Apps, Purview Communication Compliance

Platform:

Online, US Instances, Web, World tenant

Status:

Change type:

Feature update, Admin impact

Links:

Details:

Summary:
Microsoft Exchange Online is rolling out new subfields 'ClientAppId' and 'APIId' under 'AppAccessContext' for better telemetry in Exchange APIs. Rollout begins early November 2024, with automatic updates and no required admin action. Post-rollout, admins should update workflows to accommodate these fields.

Details:
Updated November 8, 2024: We have updated the rollout timeline below. Thank you for your patience.


Coming soon to Microsoft Exchange Online: A significant rollout that introduces two new subfields under AppAccessContext for improved field consistency and enhanced telemetry in other Exchange APIs:
ClientAppId
APIId
[When this will happen:]
General Availability (Worldwide): We will begin rolling out early November 2024 (previously late October) and expect to complete by mid-November 2024.
General Availability (GCC, GCC High): We will begin rolling out late November 2024 and expect to complete by late November 2024.

General Availability (DoD): We will begin rolling out early December 2024 and expect to complete by early December 2024.

Change Category:
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Scope:
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Release Phase:

Created:
2024-10-12

updated:
2024-11-09

Task Type

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MS How does it affect me

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summary for non-techies**

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Direct effects for Operations**

Inconsistent Workflow Operations
If admins do not prepare for the new fields, existing workflows may fail to recognize the new ClientAppId and APIId fields, leading to operational disruptions.
   - roles: IT Admin, Compliance Officer
   - references: https://learn.microsoft.com/exchange/policy-and-compliance/mailbox-audit-logging/mailbox-audit-logging?view=exchserver-2019, https://learn.microsoft.com/office/office-365-management-api/office-365-management-activity-api-schema

Audit Log Analysis Challenges
Without preparation, the inability to filter and analyze logs using the new fields may hinder the tracking of application activities, affecting compliance and security audits.
   - roles: Security Analyst, Compliance Officer
   - references: https://learn.microsoft.com/exchange/policy-and-compliance/mailbox-audit-logging/mailbox-audit-logging?view=exchserver-2019, https://learn.microsoft.com/office/office-365-management-api/office-365-management-activity-api-schema#exchange-mailbox-schema

Increased Support Tickets
Users may experience issues related to application access and functionality, leading to an increase in support tickets if the changes are not communicated effectively.
   - roles: Help Desk Technician, IT Support Specialist
   - references: https://learn.microsoft.com/exchange/policy-and-compliance/mailbox-audit-logging/mailbox-audit-logging?view=exchserver-2019, https://learn.microsoft.com/office/office-365-management-api/office-365-management-activity-api-schema

User Experience Degradation
Users may face degraded experiences if applications relying on the Exchange APIs do not adapt to the new fields, potentially leading to errors or reduced functionality.
   - roles: End User, Application Developer
   - references: https://learn.microsoft.com/exchange/policy-and-compliance/mailbox-audit-logging/mailbox-audit-logging?view=exchserver-2019, https://learn.microsoft.com/office/office-365-management-api/office-365-management-activity-api-schema

Compliance Risks
Failure to utilize the new fields for tracking may result in compliance risks, as organizations may not be able to provide adequate audit trails for actions taken within Exchange.
   - roles: Compliance Officer, IT Manager
   - references: https://learn.microsoft.com/exchange/policy-and-compliance/mailbox-audit-logging/mailbox-audit-logging?view=exchserver-2019, https://learn.microsoft.com/office/office-365-management-api/office-365-management-activity-api-schema

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Opportunities**

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Potentional Risks**

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IT Security**

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explanation for non-techies**

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** AI generated content. This information must be reviewed before use.

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change history

DatePropertyoldnew
2024-11-09MC MessagesComing soon to Microsoft Exchange Online: A significant rollout that introduces two new subfields under AppAccessContext for improved field consistency and enhanced telemetry in other Exchange APIs:
ClientAppId
APIId
[When this will happen:]
General Availability (Worldwide): We will begin rolling out late October 2024 and expect to complete by mid-November 2024.
General Availability (GCC, GCC High): We will begin rolling out late November 2024 and expect to complete by late November 2024.

General Availability (DoD): We will begin rolling out early December 2024 and expect to complete by early December 2024.
Updated November 8, 2024: We have updated the rollout timeline below. Thank you for your patience.


Coming soon to Microsoft Exchange Online: A significant rollout that introduces two new subfields under AppAccessContext for improved field consistency and enhanced telemetry in other Exchange APIs:
ClientAppId
APIId
[When this will happen:]
General Availability (Worldwide): We will begin rolling out early November 2024 (previously late October) and expect to complete by mid-November 2024.
General Availability (GCC, GCC High): We will begin rolling out late November 2024 and expect to complete by late November 2024.

General Availability (DoD): We will begin rolling out early December 2024 and expect to complete by early December 2024.
2024-11-09MC TitleMicrosoft Exchange Online: New fields for Exchange mailbox schema(Updated) Microsoft Exchange Online: New fields for Exchange mailbox schema
2024-11-09MC Last Updated10/12/2024 00:57:342024-11-09T00:27:39Z
2024-11-09MC SummaryExchange Online is introducing two new subfields, 'ClientAppId' and 'APIId', under 'AppAccessContext' for better telemetry in Exchange APIs. Rollouts begin late October 2024, with no admin action required. Post-update, admins should review workflows to accommodate these changes for seamless operations.Microsoft Exchange Online is rolling out new subfields 'ClientAppId' and 'APIId' under 'AppAccessContext' for better telemetry in Exchange APIs. Rollout begins early November 2024, with automatic updates and no required admin action. Post-rollout, admins should update workflows to accommodate these fields.

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