unable to move mailbox from Exchange to Office35

Hello Team,

I am unable to move any mailbox from Exchange 2010 to Office365, this issue coming very recently. the error I am getting is below:

Error: MigrationPermanentException: You must specify the PrimaryOnly parameter. Target user "username"‎‎' already has an archive mailbox. --] You must specify the PrimaryOnly parameter. Target user username‎‎' already has an archive mailbox


Please suggest.

Thanks,
Andy
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Addy NadiaExpertAsked:
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Senior IT System EngineerIT ProfessionalCommented:
Hi Andy,

Have you followed the steps in: https://support.microsoft.com/en-us/kb/2798131

Test the connectivity first by running this powershell script:
$Credentials = Get-Credential
Test-MigrationServerAvailability -ExchangeOutlookAnywhere -Autodiscover -EmailAddress <email address for your on-premises administrator> -Credentials $credentials

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Austin RobCommented:
Please have a look on this earlier discussed thread haveing suggested solution by expert that might helps you to get this job done - migrating primary mailbox issues because of existing archive mailbox

You may also take help from this informative blog post which lets you the ways to migrate multiple email accounts to Office 365: https://support.office.com/en-us/article/Ways-to-migrate-multiple-email-accounts-to-Office-365-0a4913fe-60fb-498f-9155-a86516418842
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Addy NadiaExpertAuthor Commented:
thanks
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