"To change the circumstances" means to modify or alter the situation or conditions surrounding a particular event or person, often with the aim of improving or transforming them. Full definition
I provide caring and compassionate legal help for parents seeking to outline an initial parenting plan, or modify an existing parenting plan because of changing circumstances. (divorceandfamilymediationservices.com)
It's an affordable way of addressing changing circumstances in a person's life. (firstlife.insure)
The plan may be changed prior to completion based on changing circumstances or hardship. (betterbankruptcy.com)