Hi,

I’m very familiar with Exchange hybrid mode, I did a lot of hybrid migration, and I’m waiting since very long time for Exchange Hybrid Writeback  feature to be able to edit hybrid Exchange mailbox settings from Exchange Online Admin Center instead of having to connect to the on-prem hybrid server or to “Exchange Recipient Admin Center”.  I did configure it with Cloud Sync, enabled Exchange Hybrid Writeback option like in the following article (Exchange hybrid writeback with cloud sync – Microsoft Entra ID | Microsoft Learn), but I still can’t edit any mailbox attributes that comes from the on-prem AD, like emails adresses (aliases), etc.  I still receive the same old error message saying “ Unable to update the specified properties for on-premises mastered Directory Sync objects or objects currently undergoing migration. DualWrite (Graph) RequestId: 4c2d42fa-9c6e-4749-8d00-79e9f8041787 The issue may be transient and please retry a couple of minutes later. If issue persists, please see exception members for more information.”

Am I misunderstanding how it is supposed to work?  I searched a lot on the web, and even if it seems to be a very valuable feature, not much poeple talk about it, and when they talk about it, they don’T make a demo of how to use it once it is configured.

Thanks!

​Hi, I’m very familiar with Exchange hybrid mode, I did a lot of hybrid migration, and I’m waiting since very long time for Exchange Hybrid Writeback  feature to be able to edit hybrid Exchange mailbox settings from Exchange Online Admin Center instead of having to connect to the on-prem hybrid server or to “Exchange Recipient Admin Center”.  I did configure it with Cloud Sync, enabled Exchange Hybrid Writeback option like in the following article (Exchange hybrid writeback with cloud sync – Microsoft Entra ID | Microsoft Learn), but I still can’t edit any mailbox attributes that comes from the on-prem AD, like emails adresses (aliases), etc.  I still receive the same old error message saying ” Unable to update the specified properties for on-premises mastered Directory Sync objects or objects currently undergoing migration. DualWrite (Graph) RequestId: 4c2d42fa-9c6e-4749-8d00-79e9f8041787 The issue may be transient and please retry a couple of minutes later. If issue persists, please see exception members for more information.” Am I misunderstanding how it is supposed to work?  I searched a lot on the web, and even if it seems to be a very valuable feature, not much poeple talk about it, and when they talk about it, they don’T make a demo of how to use it once it is configured. Thanks!    Read More

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