A team ready for deployment is waiting on critical information from the customer, who keeps postponing it and delaying the deployment. What should the project manager have done to prevent the delay?

The project manager should have obtained all critical information ahead of time. Proactive information gathering is a fundamental aspect of project planning and risk management. By ensuring all necessary data is secured before critical phases like deployment, the project manager can prevent delays caused by external dependencies. This aligns with the principle of thorough planning to mitigate foreseeable risks. Involving the customer in the deployment process is good for engagement but doesn't guarantee timely information delivery if the customer is already prone to delays. Using existing sample data might be an option in some scenarios, but if the information is critical and specific to the current deployment, sample data is insufficient and could lead to errors. Involving upper management is an escalation strategy for when issues arise, not a preventative measure for initial information gathering.