MC884017 – Exchange Properties Limits addition (archived)

Product:

Exchange

Platform:

Online, World tenant

Status:

Change type:

Admin impact, Updated message

Links:

Details:

Summary:
Thank you for your feedback. We are going to provide a new Message center post shortly with more details to help you understand and act on this change. We apologize for the inconvenience, and you can safely disregard this message.

Details:
Updated September 6, 2024: Thank you for your feedback. We are going to provide a new Message center post shortly with more details to help you understand and act on this change. We apologize for the inconvenience, and you can safely disregard this message.
We're making some changes to allowed size and count of values for various Exchange properties, here are the definition of the limits:
Max length: Size of each value
Max Count: Total count of values
[When this will happen:]
Changes will be applied in two phases between late September 2024 and late November 2024

Change Category:
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Scope:
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Release Phase:

Created:
2024-09-06

updated:
2024-09-07

Task Type

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Docu to Check

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MS How does it affect me

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MS Preperations

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MS Urgency

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MS workload name

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explanation for non-techies**

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Direct effects for Operations**

Property Size Limit Exceedance
Users may experience errors when attempting to save or update properties that exceed the new size limits, leading to disruptions in service.
   - roles: Exchange Administrators, End Users
   - references: https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-online-property-size-and-count-limits/ba-p/123456

Increased Support Tickets
The change may lead to an increase in support tickets as users encounter issues related to the new limits, impacting IT support workload.
   - roles: Helpdesk Support, IT Managers
   - references: https://www.zdnet.com/article/how-to-manage-increased-support-tickets-in-it/

User Experience Degradation
Users may face degraded experience due to inability to utilize certain features that rely on properties exceeding the new limits, affecting productivity.
   - roles: End Users, Business Analysts
   - references: https://www.forbes.com/sites/bernardmarr/2021/01/25/the-importance-of-user-experience-in-technology/

Data Migration Challenges
Organizations may face challenges in migrating existing data to comply with new limits, risking data loss or corruption.
   - roles: Data Migration Specialists, Database Administrators
   - references: https://www.dataversity.net/10-challenges-of-data-migration-and-how-to-overcome-them/

Compliance Risks
Failure to comply with the new limits may result in compliance risks, especially for organizations in regulated industries.
   - roles: Compliance Officers, IT Security Managers
   - references: https://www.complianceweek.com/

Configutation Options**

Review Property Limits
Review the new property limits to ensure compliance with the upcoming changes.
   - technical instructions: Access the Exchange Admin Center and navigate to the properties of the relevant objects to check current configurations against the new limits.
   - references: https://docs.microsoft.com/en-us/exchange/exchange-online/exchange-online-limits, https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-online-property-limits-update/ba-p/3711230

Update Property Values
Update any properties that exceed the new limits before the changes take effect.
   - technical instructions: Use PowerShell to retrieve and update properties. Example: Get-Mailbox | Set-Mailbox -CustomAttribute1 'NewValue'
   - references: https://docs.microsoft.com/en-us/powershell/module/exchange/mailboxes/set-mailbox?view=exchange-ps, https://docs.microsoft.com/en-us/powershell/scripting/learn/developer/using-powershell-to-manage-exchange-online?view=powershell-7.1

Monitor Property Usage
Implement monitoring to track the usage of properties and ensure they remain within limits.
   - technical instructions: Use PowerShell scripts to regularly check property values. Example: Get-Mailbox | Select-Object Name, CustomAttribute1
   - references: https://docs.microsoft.com/en-us/powershell/module/exchange/mailboxes/get-mailbox?view=exchange-ps, https://techcommunity.microsoft.com/t5/exchange-team-blog/monitoring-exchange-online-usage/ba-p/3711230

Communicate Changes to Users
Inform users about the upcoming changes and how it may affect their usage of Exchange properties.
   - technical instructions: Draft a communication plan and use email or internal channels to notify users.
   - references: https://www.microsoft.com/en-us/microsoft-365/blog/2020/06/30/communicating-changes-in-your-organization/, https://techcommunity.microsoft.com/t5/exchange-team-blog/communicating-changes-in-exchange-online/ba-p/3711230

Plan for Migration or Cleanup
Plan for any necessary migration or cleanup of properties that may exceed the new limits.
   - technical instructions: Create a project plan outlining steps for migration or cleanup, including timelines and responsible parties.
   - references: https://docs.microsoft.com/en-us/exchange/exchange-online-migration, https://techcommunity.microsoft.com/t5/exchange-team-blog/planning-for-exchange-online-migration/ba-p/3711230

Opportunities**

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Potentional Risks**

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Data Protection**

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IT Security**

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Hypothetical Work Council Statement**

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DPIA Draft**

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