I am trying to setup partnerApplication with Lync 2013 on my Exchange 2013 (both On-premises) server. When I execute "Configure-EnterprisePartnerApplication.ps1" script from D:\ProgramFiles\ExchangeServer2013\Scripts\Configure-EnterprisePartnerApplication.ps1, I am getting the below error. My account is member of "Organization Management" group.

ERROR:

Creating User <LyncEnterprise-ApplicationAccount> for Partner Application.

D:\ProgramFiles\ExchangeServer2013\Scripts\Configure-EnterprisePartnerApplication.ps1 : The term 'Get-AcceptedDomain' is not recognized as the name of a cmdlet,
function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ .\Configure-EnterprisePartnerApplication.ps1 -AuthMetadataUrl "https://lync2013pool ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Get-AcceptedDomain:String) [Configure-Enter...Application.ps1], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException,Configure-EnterprisePartnerApplicati

Hi,

Please make sure running this script from EMS, not from Windows power shell. And make sure running EMS as administrator (Right-click on EMS and choose Run as administrator)

If there are many accepted domain in your environment?

Best Regards.