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Imran khalid's avatar
Imran khalid
Copper Contributor
Jun 20, 2018

Cutover Migration error Userinputinvalidexception

I am migrating clients emails from privately hosted Exchange to Office 365 through cutover migration. It starts provisioning the accounts and stayed at it for few minutes and failed with the followi...
exchange
office 365
Robert Smithson's avatar
Robert Smithson
Copper Contributor
Jun 21, 2018

We're having the exact same issue and error.  Did you get it resolved?

Imran khalid's avatar
Imran khalid
Copper Contributor
Jun 21, 2018

Hi Robert,

 

Finally, I made it working this morning. I am not sure if you have the similar infrastructure and doing the similar migration.

 

We have multiple client hosted in our Exchange Server 2013. However, we are using single forest and single domain. Managing the clients by creating the OU for each tenant with one admin account for each tenant.

 

When I was doing the cutover migration, I was selecting the admin user for that particular tenant and it filters out the mailboxes during the process. What I noticed it when I was giving "Full Access" to admin account for the mailboxes and selected the "Full Access" permission in the Cutover Migration endpoint; I was getting this error. What I changed it now to add admin account in Organization Management exchange security group and created the endpoint with NTLM and Domain Admin access for the admin user. It addressed the issue and now I can see the mailboxes are getting migrated.

 

I hope that helps.

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