Hi All, I've got 2 mailboxes migrated recently from E2K to E2K7. Currently they are showing up with the SharedMailbox type. I'm trying to change them to Room mailboxes. When I do this I get the following error: Set-Mailbox : Active Directory operation failed on SERVERNAMEHERE. T his error is not retriable. Additional information: Insufficient access rights to perform the operation. Active directory response: 00002098: SecErr: DSID-03150A48, problem 4003 (INSUF F_ACCESS_RIGHTS), data 0 At line:1 char:12 + set-mailbox <<<< -Identity "MAILBOXNAMEHERE" -type room + CategoryInfo : NotSpecified: (0:Int32) [Set-Mailbox], ADOperati onException + FullyQualifiedErrorId : CE860BAE,Microsoft.Exchange.Management.Recipient Tasks.SetMailbox I've looked at the AD permissions for the account associated with the mailbox and the check box for inheriting permissions from parent is checked. Tried unchecking and rechecking that with no success. The account I am using to do this is part of a group that does have permissions to the box. Any suggestions as to why this may be occuring? Thanks Peter

What AD rights does the account have?Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Before going further, please assure the account you use must be delegated as Exchange Recipient Administrator role. For more information, please refer to the following article: http://technet.microsoft.com/en-us/library/bb124952(EXCHG.80).aspx Thanks. NovakPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.