Milestone failure due to an external provider. What actions to take?

If a milestone slip occurs due to an external supplier, it is necessary to:

1. Assess the situation and causes of the slip — understand what exactly caused the delay, how critical it is, and how it will affect the overall project.
2. Contact the supplier — obtain updated information on timelines and potential risks.
3. Inform interested parties — the team, clients, and management should be aware of the changes.
4. Review the project plan — determine if resources can be redistributed, priorities can be changed, or the schedule can be adapted.
5. Consider alternative options — look for other suppliers, temporary solutions, or internal resources to compensate for the delay.
6. Enhance control and communication — establish more frequent reports and checkpoints with the supplier.

It is important to maintain transparency and proactively manage risks to minimize the impact of the slip on the project.