When you set up a SAML Authentication Endpoint in ScreenSteps you upload an X.509 Certificate in PEM format. This file is provided by your SAML provider. (If you are using Salesforce then the certificate is included in the Identify Provider Metadata file that you uploaded.) When that certificate expires you must upload a new certificate in order for your ScreenSteps SAML integration to continue to work properly.
Which SAML provider is your ScreenSteps Authentication Endpoint connected to?
Download Metadata file from Salesforce
Download the certificate from Apps > SAML Apps > Settings for ScreenSteps
Download the certificate from ADFS Management > Service > Certificates
Locate and download the x.509 certificate in PEM format
Unfortunately we don't have specific instructions on where to locate the certificate for your provider. You will most likely find the certificate in area of the SAML provider application where you configured the ScreenSteps integration.
Upload the certificate or metadata file to ScreenSteps
For information on locating your Single Sign-on settings refer to the article How to edit SAML settings or find your SAML Consumer and Test URLs.
If your endpoint is connected to Salesforce then click the Upload new Salesforce Configuration file button. Otherwise click the Replace SAML Certificate file button.
After you select the file you downloaded from your provider it will upload and be applied to your endpoint. SSO should now work again.