Which of these is a limitation of High Volume Community users?

High Volume Community users are designed for a large number of users with limited features compared to standard Salesforce users. One of the key limitations of these users is that they cannot manually share records that they own. This restriction is in place to simplify the sharing model and reduce complexity in community environments where user roles and sharing can become intricate.

The inability to manually share records means that High Volume Community users rely on the existing sharing rules, role-based access, or other automated sharing mechanisms rather than having the flexibility to share records on a case-by-case basis. This limitation is particularly significant for communities that prioritize scalability and manage a large user base.