DigiCert product docs Software Trust Manager Keypairs Keypairs Assign a default certificate to a keypair Assign a default certificate to a keypair You can set the default certificate for a keypair from Software Trust Manager or SMCTL.Exemple 1. Software Trust Manager To specify a default certificate for a keypair: Sign in to DigiCert ONE. Navigate to the Manager menu (top right) > Software Trust. Select Keypairs. Hover over keypair alias > select Edit from the menu. Identify the Default certificate field and select the certificate you want to sign with from the list. Select Update.Exemple 2. SMCTL To specify a default certificate for a keypair, run:smctl keypair update <keypair alias> --default-cert-id=<certificate ID> Command sample:smctl keypair update a609c6e6-fc89-48ff-a0148-1d7001580452 --default-cert-id=a705g6f6-fc89-58ee-a071-1d7001580452