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Marvin Oco's avatar
Marvin Oco
Steel Contributor
Jan 25, 2021

Detailed error message: Exception happened when doing AAD dual-write.

trying to delete and add contacts in 365, got error below

 

An Azure Active Directory call was made to keep object in sync between Azure Active Directory and Exchange Online. However, it failed. Detailed error message: Exception happened when doing AAD dual-write. For more details, please check RemoteException if using RPS client or innerException otherwise. RequestId : e8586e36-6c20-488d-1eca The issue may be transient and please retry a couple of minutes later. If issue persists, please see exception members for more information.

 

we have ad connect server but only users are synched.

contacts are added directly in 365'

 

any known  fix?

 

 

    • Marvin Oco's avatar
      Marvin Oco
      Steel Contributor
      not sure if this is global issue, this is working before.
      already submitted ticket to microsoft, still waiting for solution.
      • edfsanchez's avatar
        edfsanchez
        Copper Contributor
        Okay, thanks. Please update when you hear from MS.
    • Marvin Oco's avatar
      Marvin Oco
      Steel Contributor
      tested also in my tenant, cannot add new distribution list
    • saifs1980's avatar
      saifs1980
      Copper Contributor
      this is because of recent update from MS that they have enabled dual write feature for all tenants and this will be permanent feature as of now.
      https://techcommunity.microsoft.com/t5/exchange-team-blog/exchange-online-improvements-to-accelerate...

      I faced various issues like not able to add alias.

      Getting error: Another object with the same value for property EmailAddresses already exists.
      The issue may be transient and please retry a couple of minutes later. If issue persists, please see exception members for more information.
      Cmdlet-UnableToWriteToAadException]

      If you look at the error details it says "UnableToWriteToAadException". When we connect to powershell of the tenant and run command:
      - Ran command: Get-OrganizationConfig | fl IsDualWriteEnabled
      IsDualWriteEnabled : True

      A support ticket and you need to tell MS to disable the feature. Then you can remove shared mailbox.

      • Marvin Oco's avatar
        Marvin Oco
        Steel Contributor

        ok now in my tenant

         

        might be related to incident EX235961.

  • Marvin Oco 

    Same error when trying to convert user mailbox to shared mailbox, when edit Aliases in user mailbox.

    All work has stopped.

     

      • sububi's avatar
        sububi
        Copper Contributor

        sububi The conversion just worked without any prior corrective actions.

  • jessemfordMT's avatar
    jessemfordMT
    Copper Contributor

    Same issues here, on with MS now. I dont think they are going to help, sounds like we are waiting for a fix on their end. 

  • FelCar's avatar
    FelCar
    Copper Contributor

    Marvin Oco the issue apply in my tenant, when i changed the mail or named UserName, I call the support of Microsoft but the reponse was "need a evidence" and I detail the failure, I waiting a response or the solution to fix this error, Any has the same mistake?

  • edfsanchez's avatar
    edfsanchez
    Copper Contributor
    Although I was able to add a new group, I'm still having trouble managing the group (add users).
    • edfsanchez's avatar
      edfsanchez
      Copper Contributor

      disregard. might be a browser issue. closed and reopened my browser and it allowed me to manage groups again. 

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