Cannot process argument transformation on parameter 'Identity'. Cannot convert value "" to type

Question

Hi guys,

Please look at this i can't add outlook to my account. I have lost my outlook admin mailbox :D 

Cannot process argument transformation on parameter 'Identity'. Cannot convert value "" to type "Microsoft.Exchange.Configuration.Tasks.RecipientIdParameter". Error: "Parameter values of type Microsoft.Exchange.Configuration.Tasks.RecipientIdParameter can't be empty. Specify a value, and try again. Parameter name: identity"

Answer 1

Hello Mateusz Janusek,

Thanks for your post here.

According to the screenshot you provided, my understanding is that you can't enable Outlook Web App for your mailbox. Given this situation, you can try another method to enable it. To do that, please click Exchange in the left pane of Microsoft 365 admin center to go to Exchange admin center, then click recipients > mailboxes and double click on your account, then select mailbox features and then enable Outlook on the web or others like to following screenshot:

If you need further assistance, please kindly provide the following information to me and I will try my best to help you:

1.  If there exist other administrators in your organization, please double check whether other administrators encounter the same issue.

2.  If you manage email apps for other users, will you get the same error message?

Thanks for your time.

Regards,

Seven

Answer 2

Hi Mateusz Janusek,

How is your problem going? Any updates would be highly appreciated.

Regards,

Seven

Answer 3

Same issue here!
The account doesn't appears in exchange.

Regards.