After your client certificate is issued, you can download a copy from your SAML Client Certificates page. Client certificates are issued when you generate the certificate in your browser or, for those including a CSR in their request, when DigiCert issues the certificate and sends it to you in an email.
Have the SAML certificate request's URL. If you lost the URL, contact your administrator.
Go to the Client Certificates page
Use your provided SAML certificate request's URL to sign in.
Download your certificate
On the Client Certificates page, locate the client certificate and click Download.
Save your client certificate, making sure to note the location.
Don't lose the copy. Store the client certificate in a secure location.