What happens when the glide.knowman.allow_edit_global_articles system property is enabled ?

The glide.knowman.alloweditglobalarticles system property is specifically designed to override the default security behavior in a domain-separated environment for Knowledge Management. By default, knowledge articles in the 'global' domain can only be edited by users who are also in the global domain. When this property is set to true, it explicitly grants users in other, specific domains the ability to check out and edit these global articles. The user must still possess the necessary underlying permissions (e.g., contributor access to the specific knowledge base) to perform the edit. The edited article remains in the global domain.

A. Users in global can check out and edit global articles This describes the default behavior. Users in the global domain with appropriate roles can always edit global articles; enabling this property does not change their permissions.
B. Users from any domain with a knowledge admin role and can check out and edit global articles This is incorrect because the functionality is not exclusively limited to the knowledgeadmin role. Any user with the required contribution permissions can edit the article, not just administrators.
C. Users with admin rights from global domain can check out and edit global articles This is incorrect for the same reason as option A. This is standard behavior for administrators in the global domain and is not the change effectuated by this property.

1. ServiceNow Product Documentation - Domain separation for Knowledge Management: "By default, users in a specific domain cannot edit knowledge articles in the global domain. To allow users to edit global knowledge articles, set the glide.knowman.alloweditglobalarticles system property to true. When this property is set to true, users in a specific domain can check out and edit a global knowledge article. The edited article remains in the global domain." (ServiceNow Vancouver Docs, Doc ID: KB0752083).

2. ServiceNow Product Documentation - Knowledge Management properties: The property glide.knowman.alloweditglobalarticles is described as: "Allow users in a domain to edit a global article. When set to true, users in a domain can check out and edit a global article. The edited article remains in the global domain." (ServiceNow Vancouver Docs, Section: "Installed with Knowledge Management").