Hello, I'm trying to migrate my on-prem mailboxes in Exchange 2016 to Exchange online using cutover migration. The exchange activesync test is working. When i try to create the migration endpoint it gives me this error: I've enabled MRS Proxy in EWS virtual directory. What am i missing to setup or where could be the problem? Thanks

Hi @André Barradas , Have you tried the options listed in the error message like changing the mailbox provided and see how it goes? If it doesn't work, it's suggested to try updating the password of the administrator account you entered when creating the migration endpoint and try it again. Furthermore, you can also take a look at the following article and see if you have missed any preparation tasks: Prepare for a cutover migration If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Did you checked this thread - https://answers.microsoft.com/en-us/msoffice/forum/all/i-have-the-error-response-content-is-null-when-i/728ab075-6f33-47c1-aeeb-8d06152aff45

Exchange on-prem migration to Exchange Online

André Barradas 21

Hello,

I'm trying to migrate my on-prem mailboxes in Exchange 2016 to Exchange online using cutover migration.

The exchange activesync test is working.

User's image

When i try to create the migration endpoint it gives me this error:

User's image

I've enabled MRS Proxy in EWS virtual directory.

What am i missing to setup or where could be the problem?

Thanks

2 answers

Yuki Sun-MSFT 41,016 Reputation points

2023-10-25T04:09:38.7333333+00:00

Hi @André Barradas ,

Have you tried the options listed in the error message like changing the mailbox provided and see how it goes?

If it doesn't work, it's suggested to try updating the password of the administrator account you entered when creating the migration endpoint and try it again.

Furthermore, you can also take a look at the following article and see if you have missed any preparation tasks:
Prepare for a cutover migration

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
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André Barradas 21 Reputation points

2023-10-25T06:38:34.6633333+00:00

Hello. Thanks for your reply. Yes i tried with different mailbox with full access to all mailboxed that i want to migrate but still the same error. Ive checked that cutover migration preparation but i think im not missing anything

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Yuki Sun-MSFT 41,016 Reputation points

2023-10-25T07:11:11.92+00:00

Hi @André Barradas ,

The exchange activesync test is working.

Have you tried running the Outlook Autodiscover test as well to see the result? https://testconnectivity.microsoft.com/tests/Ola/input

Besides, it's worth trying to create the endpoint using Exchange Online Powershell (New-MigrationEndpoint ) and check how it goes.

André Barradas 21 Reputation points

2023-10-25T09:25:08.5033333+00:00

Hello.

Completed with one warning as bellow:

I'll check with the command as soon as i check which options to use in cutover

André Barradas 21 Reputation points

2023-10-25T09:47:46.44+00:00

I've tried to run this command:

New-MigrationEndpoint -ExchangeOutlookAnywhere -Name EXCH_Manual -ExchangeServer internalservername.domain.com -RPCProxyServer internalservername.domain.com -Credentials (Get-Credential onprem_domainuser) -EmailAddress email_adress_withfullpermissions

Got this error:

Yuki Sun-MSFT 41,016 Reputation points

2023-10-26T08:42:49.9033333+00:00

Hi @André Barradas ,

Could you follow the steps in the document below and try it again using powershell?

Step 2: Create a migration endpoint

André Barradas 21 Reputation points

2023-10-26T08:53:17.7166667+00:00

I've tried to run but the last command gives me this error:

Yuki Sun-MSFT 41,016 Reputation points

2023-10-27T08:06:23.67+00:00

Hi @André Barradas ,

The error might be related to a failed result of the second command. Could you run the first two commands and then run "$TSMA" to see the output of the Test-MigrationServerAvailability?

By the way, if there's any firewall running in the on-prem environment, try temporarily disabling it and check if it can help.

André Barradas 0 Reputation points

2023-10-27T08:22:12.09+00:00

Hello

I've tried that command but i can't figure it out why it doesn't accept this parameter:

Yuki Sun-MSFT 41,016 Reputation points

2023-10-27T09:09:51.5733333+00:00

Hi，

Just wondering have you connected to Exchange Online Powershell using the global admin account before running these cmdlets?

André Barradas 0 Reputation points

2023-10-27T09:50:36.25+00:00

Yes i'm using the Global Admin account

Yuki Sun-MSFT 41,016 Reputation points

2023-10-30T08:07:42.4566667+00:00

Hi,

Could you try typing "Test-MigrationServerAvailability -ExchangeOutlook", then hit the Tab to see if the "ExchangeOutlookAnywhere" parameter can be automatically completed?
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Amit Singh 4,956 Reputation points

2023-10-25T05:50:18.29+00:00

Did you checked this thread - https://answers.microsoft.com/en-us/msoffice/forum/all/i-have-the-error-response-content-is-null-when-i/728ab075-6f33-47c1-aeeb-8d06152aff45
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André Barradas 21 Reputation points

2023-10-25T06:39:45.2866667+00:00

Hello. Thanks for your reply. Im not sure what do you want me to check on that thread. I dont have that error.

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André Barradas 21 Reputation points

2023-10-25T09:26:38.6233333+00:00

Do you have any other advice?
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Exchange on-prem migration to Exchange Online

2 answers