When you revoke an Apple enterprise certificate, all applications signed with that certificate will become invalid and cannot be installed or updated.
Additionally, any configuration profiles, VPN settings, or other mobile device management (MDM) features that rely on your enterprise certificate will also become invalid.
If you revoke a certificate and wish to continue using your applications and mobile device management features, you will need to re-sign your applications and configuration profiles with another valid enterprise certificate and install these updates on your mobile devices. If you use a mobile device management (MDM) solution, you may also need to reconfigure your MDM server to use the new certificate.