When a stakeholder is unhappy with the result of a fixed-price project, the project manager should review the missed program deliverables with the project team1. This allows the team to understand what went wrong and how they can improve in future projects. It's important to note that in a fixed-price project, the risk of incurring additional costs to complete performance of the project falls entirely on the supplier1. Therefore, performing any out of scope work that has not been agreed to, such as through a change order process, adds costs to the project1. References: The special challenges of project management under fixed-price contracts