If you receive a written warning at work, it is important to take it seriously and respond appropriately. Here are some steps you can follow:

1. Read the warning carefully and make sure you understand the specific issues or behaviors that are being addressed.

2. Consider whether the warning is justified. If you believe the warning is not justified, try to calmly and objectively explain your perspective to your manager or HR representative.

3. If the warning is justified, take responsibility for your actions and apologize if appropriate.

4. Develop a plan to address the issues or behaviors outlined in the warning. This may include setting specific goals, seeking additional training or support, or making changes to your work habits.

5. Follow through on your plan and make an effort to improve your performance.

6. If possible, ask for feedback on your progress and continue to communicate with your manager or HR representative to demonstrate your commitment to addressing the issues raised in the warning.

7. It is important to remain professional and respectful throughout the process, even if you disagree with the warning. Remember that a written warning is a opportunity to improve and should be taken seriously.