At the time of disabling the OMA exchange feature (in exchange 2003 ) , we are getting the following error message Access denied. Facility: LDAP Provider ID no: 80070005 Microsoft Active Directory - Exchange Extension

You have disabled OMA and you get access denied? What did you expect? You should probably expand on your question more, such as whether you really meant "disabling" and actually meant "enabling". Simon.Simon Butler, Exchange MVP Blog | Exchange Resources | In the UK? Hire Me.

Hi From ESM delegated "Exchange View Only Admin" right to the user. Please check you have to give RPWP (Read and Write permissions) for the exchange attribute “ msExchOmaAdminWirelessEnable”