Use a Shared Person Account Role for Site Users

Convert single-user accounts associated with sites to use a shared person account role. A shared person account role is one role that the platform creates and assigns to all external role-based users that are in a single-user account.

Important If you have a large number of business accounts that have a single Experience Cloud site user, we recommend enabling account role optimization (ARO). With ARO enabled for an external role-based user who is the only external role-based user on the account, only one role is created and assigned to the user. Without ARO, the default number of account roles (1 to 3) is created and assigned to the user. The fewer number of roles, the better the performance of your site.

1. To use shared person account roles, enable account role optimization.
2. To update an Experience Cloud site user role and convert the user to the shared person account role, use code as shown in this sample Apex code.

   
   User u = new User();
   u.Id = '<user id>';
   u.PortalRole = 'PersonAccount';
   update u;