What should a user do if they encounter an error about an unregistered Identity Provider?

The correct approach for handling an error related to an unregistered Identity Provider is to request a new certificate from that Identity Provider. Identity Providers (IdPs) play a critical role in the authentication process, and they use certificates to establish trust with applications like DocuSign. If an error indicates that the Identity Provider is unregistered, it typically means that the application does not recognize the certificate being used for authentication.

Requesting a new certificate is essential because it ensures that the application can securely communicate with the Identity Provider, and it may involve updating configurations that relate to identity and access management. This process might include validating the Identity Provider's settings or ensuring that the correct metadata is being used for authentication.

Taking other actions, such as updating account information, changing the user role, or reinstalling the application, would not directly resolve issues stemming from unregistered Identity Providers, as these actions do not address the core problem of authentication and trust between the application and the IdP. Thus, seeking a new certificate is the most relevant and effective way to rectify the situation.