Validate a certificate or a keystore Administrators should validate certificates and keystores after uploading them to determine if there are any issues to resolve. Before you beginRole required: admin About this task If the instance encounters any errors with the certificate or keystore, it displays an error message. Procedure Navigate to System Definition > Certificates. Select the certificate or keystore you want to validate. From the X.509 Certificate form, click the Validate Stores/Certificates related link. For example, this certificate fails validation because it is expired.