- When attempting to sign in to WMS or Tipasa, an error message appears that says "One or more signatures could not be validated on the SAML response from the identity provider. This can happen if the institution was recently reconfigured. Contact our customer support staff or Orders Services at OCLC."
- WorldShare Management Services
This error message typically indicates that there was a change to your library's certificate. Contact OCLC Support with the following information:
- Name and Contact information of the authentication server administrator of your library. This is often the IT department.
- A copy of your library's metadata file or the URL for your library's metadata file.
OCLC Customer Support will be able to use this information to update the certificate on your behalf.