To identify a certificate, you need to the the Get-CsCertificate cmdlet, possibly combined with the Where-Object cmdlet to sort results. You first need to find the certificate hash to enable it. Import-CsCertificate -Path 'c:\your_certificate.pfx' -PrivateKeyExportable $True pfx) file, you will need to enter this command in your Skype for Business Server powershell, replacing the path: To install a certificate or import a PKCS#12 (.p12 or. p12) file, generated using another tool like Keybot, you can also read the Install section. If you used the powershell command line, you will need to complete the install using it. If you used the graphical wizard to generate your private key and CSR, you will need to complete the install with it. To install your certificate whose private key and CSR were generated on it, you will need to import your PKCS#7 (.p7b) file, available in your delivery email or from your certificate status page.
Install a certificate on Skype for Business Server 2015 (Formerly Lync) Preparing the install