Multi-level approval workflows require a transaction above a certain amount or type to be approved by more than one person. For example, high-value transfers may need manager + finance approval; leave requests may need manager + HR approval.
Approval definition: Transaction type (transfer, order, leave, quote, travel expense, etc.) and approval chain are defined by amount threshold or rule. Approver role or person is set at each step.
Pending approvals are listed on one screen (approval board); approver rejects or approves to move forward. Approval history provides an audit trail.