Selectively granting computer system access credentials to external users and non-users

Abstract

Data records associated with an account may be used to track incidents in a supply chain. Incident records associated with a supply chain are accessible and modifiable by users with an active user account associated with an incident management application. The application may receive requests to perform user actions on multiple incidents. Each request may be validated according to account-specific permissions and user-specific privileges. Multiple users may be grouped according to user classes indicative of their status as internal users or external users. Non-users may be invited to perform user actions on incident data through access links generated by the application instance. Access links may allow a non-user to become an invited or registered external user. A registered external user may be promoted to a named external user. Various visibility groups may limit the user actions that any given user of a particular user class can perform on incident data.