If you have an expired credential that you would like to keep around for records purposes, or just one that you don’t want your users to see, you can hide it through the Credential Options.
Here's how to:
Under Administration, open Manage Credentials. Then, open the credential you wish to hide.
Click the gear icon above Credential Options.
Under the Allow Users to view in section, change the answer from Yes to No, and then click Save.
The credential is now invisible to your users. It will not be on their Schedule or in their My Credentials section. As an administrator, you can still access the credential information through Manage Credentials and Generate Reports.