Exchange Online
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The InnerException message was ‘Maximum number of items that can be serialized or deserialized in an object graph is ‘2000000’.
This was quite an interesting error for a mailbox I tried to migrate from Exchange 2013 to Exchange Online. The mailbox synced to 95% and I received the below error after I tried completing the batch. Error details: The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:ISourceFolder_EnumerateChanges2Result. The InnerException message was ‘Maximum number of items that can be serialized or deserialized in an object graph is ‘2000000’. The key to this error is the object graph limit that is set in the MsExchangeMailboxReplication.exe config file. To resolve the issue do the following: Logon to your on premises Exchange…
- Active Directory, Exchange 2007, Exchange 2010, Exchange Management Shell, Exchange Online, Exchange Tools, Microsoft Exchange, Office 365
Error due to mismatch of GUID: Recipient “NameOfRecipient” has mismatched Archive GUID
You receive the error “Recipient “NameOfRecipient” has mismatched Archive GUID” when you try and off board a mailbox from Exchange Online to on premises Exchange. Follow the below steps o resolve the issue and migrate the mailbox back to the on premises Exchange environment: Logon to Exchange Online using Powershell. Run: get-mailbox user | fl *archiveguid* Make a note of the GUID Open Exchange Management Shell on premises Run: Get-RemoteMailbox User | fl *archiveguid* You should see that the GUID on prem is different to the GUID from Exchange Online To resolve, in Exchange Management Shell on prem run: Set-RemoteMailbox User -ArchiveGuid “GUID you got from Exchange Online” The above should work without…