Client communication guide

How to explain a project delay to a client.

A credible delay update does not hide the impact or make a new promise without evidence. It separates what happened, what is controlled now, and what the client needs to decide.

Use five moves

  • State the delay and its impact directly.
  • Take ownership without speculating or blaming.
  • Explain the cause at the level the client needs.
  • Show what changed in the revised plan.
  • Confirm the next action, owner, and update time.

Example language

We will miss Friday’s delivery by four business days. The integration test found a data-mapping issue that would affect existing records. We have reduced the release scope, assigned one owner to the migration fix, and added a daily verification step. We can deliver the safe scope on Thursday. I need your decision today on whether the reporting export should move to the following release.

Common mistakes

  • Opening with a long explanation before stating the impact.
  • Using passive language so no one owns the recovery.
  • Giving a new date without evidence that conditions changed.
  • Ending without a client decision or next update time.
Practice a difficult client call