Setting Static Task Participants
Set fixed task participants when a simple process always assigns work to the same users.
As shown below, in a simple application, either or both of the Potential Owner or Business Administrator participants can be a static value like DAVID or CARLA. But normally you use one of the Value Type settings like SQL Query, Function Body, or Expression to dynamically determine one or both of these participant lists.

Description of the illustration tasks-participants.png
Caution: Participant usernames are case-sensitive. If :APP_USER returns DAVID, then use DAVID.