In addition to submitting a credential for the first time, Urjanet Connect also allows you to generate links to update credentials that are no longer working.
To do this, first goto the Manage -> Credentials page in Portal.
From there, select the credential you would like to update and click the Details button.
In the Details page, you will see a Generate URL button.
Once you click Generate URL, a new URL will be created for you to send out to have an end-user update their credential. This link will be available for 10 days for an end-user to use to update the credential.