Exchange Properties Limits addition

Exchange is set to update its property size and count limits in two phases from late September to late November 2024. This means organizations must adhere to these new limits and prepare accordingly. Phase 1 covers limits for properties like CloudMSExchUCVoiceMailSettings, while Phase 2 includes CloudMSRtcPolicyAssignments, among others. The changes will be in terms of the allowed size and count of values for various Exchange properties. Specifically, each property will have a maximum length and a maximum count of values. These changes will be applied in two phases, with the first beginning in late September 2024. The second phase commences late November 2024. As such, organizations need to review the new limits, take action, and ensure compliance. Failure to do so means that they will not be able to exceed the new limits, as of when the changes take effect.

For Phase 1, starting from late September 2024, new limits will be added to properties like CloudMSExchUCVoiceMailSettings, MSExchArchiveName, MSExchResourceMetadata, MSExchSenderHintTranslations and ExchangeResources. For Phase 2, starting late November 2024, new limits will be added to properties like CloudMSRtcPolicyAssignments, MSExchResourceSearchProperties, CloudMSExchUserHoldPolicies, MSExchExtensionCustomAttribute1, MSExchExtensionCustomAttribute2, MSExchExtensionCustomAttribute3, MSExchExtensionCustomAttribute4, MSExchExtensionCustomAttribute5, ValidationError, and ProxyAddresses.

Therefore, organizations must keep abreast of these changes and ensure that their systems are updated accordingly to enable smooth operation.

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