If the SAML certificate expires, users become unable to single sign-on to Kintone.
When the certificate is about to expire, issue a new certificate with IdP and register it to Kintone.

1. Click the gear-shaped menu button in the header.

2. Click Users & System Administration.

3. Click Login.

4. Click Browse and select a new public key certificate file.
   

5. Click Save.

The certificate renewal is complete when you can successfully perform the following actions:

• You can single sign-on to Kintone using SAML Authentication.
• You can log out from Kintone.
  Logging Out