using the new-mailcontact cmdlet

Hi

Just been using powershell to try and bulk upload contacts to GAL in 365. Have found some useful threads within the forums and have been using recommended powershell commands. I have my csv file created and in the right place, but when i run the command to create the contacts i get an error that powershell doesn't recognise the cmdlet: see below. I am logged into powershell as administrator.

using command:

Import-Csv .\contacts1.csv|%{New-MailContact -Name $_.Name -ExternalEmailAddress $_.ExternalEmailAddress}

I get error:

The term 'New-MailContact' is not recognized as the name of a cmdlet, function, script file, or operabl
e program. Check the spelling of the name, or if a path was included, verify that the path is correct a
nd try again.
At line:1 char:45
+ Import-Csv .\contacts1.csv|%{New-MailContact <<<<  -Name $_.Name -ExternalEmailAddress $_.ExternalEma
ilAddress}
    + CategoryInfo          : ObjectNotFound: (New-MailContact:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

it repeats the error for each line in my csv file

Any ideas?

Thanks

Steve