Access to Approval actions is controlled on the standard Approvals page, the My Approvals page, and from the Approval Center.

• Only the following authorized users can approve, reject, reassign, or take ownership of queue/role approvals:
  • The assignee of the request
  • The assignee's delegate or backup
  • The backup admin user
  • The system admin user
• Only users who receive assignment/reassignment notifications can perform email approval actions.
• Only the following authorized users can add an ad hoc approver:
  • The assignee of the request
  • The assignee's delegate or backup
  • The backup admin user
  • The system admin user
  • The current assignee on any request on the My Approvals page can add an ad-hoc approver for any request that is in an assigned or not submitted status.

Any user with read/write access to the approval context objects can access submitter actions (such as preview approvals, submit for approval, or cancel/recall approval) as well as the objects used for approvals (such as approval request, approval process instance, or approval request history)