Northern Trail Outfitters has implemented OAuth 2.

In OAuth-based Salesforce integrations, intermittent logout behavior is often tied to token lifecycle rather than to general platform permissions. Salesforce documentation distinguishes clearly between authentication, authorization, and token validity. Even if the initial login succeeds, the user can appear to be “randomly logged out” when an access token expires, is revoked, or can no longer be refreshed according to policy. That is why token status and refresh behavior should be checked early in troubleshooting. Browser version, network delay, or missing Salesforce permissions can cause other access problems, but they do not typically explain an established SSO session ending intermittently in an OAuth flow. The first architectural checkpoint is whether the token issued by the identity provider remains valid for the expected duration. This is why option A is the best answer in Salesforce terms.