To create the new certificate request from the exchange management shell:
$certReq = new-exchangecertificate -subjectName "C=AU,S=NSW,L=My UC Thoughts,O=City, OU=IT,CN=E2K13.myucthoughts.local" -domainName E2K13.myucthoughts.local -privatekeyexportable $true -generaterequest
set-content -path "c:\certificates\UM.req" -value $certReq
From here you can then complete request from the Certificate Authority to approve the certificate using the UM.req file. Once you have the certificate you can "complete" the pending certificate request from the Exchange 2013 server.
Update 28/08/2015:
Found this site today that has a web form and it will generate the "New-ExchangeCertificate" command for you to copy and paste.
http://www.tachytelic.net/2010/03/new-exchangecertificate-cmdlet-syntax-generator/
Found this site today that has a web form and it will generate the "New-ExchangeCertificate" command for you to copy and paste.
http://www.tachytelic.net/2010/03/new-exchangecertificate-cmdlet-syntax-generator/