Types of Participant Resolvers

For the template method, there are seven types of participant resolvers:

Approval Task Role Members: Specifies the participants are members of roles that grant access to the approval task.
User List: Specifies the participants are a specified list of users.
Group Members: Specifies the participants are members of a specified list of groups.
Admin Role Members: Specifies the participants are members of a specified list of admin roles.
Admin Task Members: Specifies the participants are members of admin roles associated with a specified list of admin tasks.
Dynamic Resolver: Specifies the participants are dynamically selected depending on the task or event being approved.
Null Resolver: Resolves to a null list with no users.
Custom: Specifies the participants are determined by a custom participant resolver.
Business Owner Resolver: Specifies the list of participants configured in the Catalog Rule as Business Owners of an Entity.
Admin Owner Resolver: Specifies the list of participants configured in the Catalog Rule as Admin Owners of an Entity.
Manager Resolver: Specifies the participant that is set as Manager of the User Object.