What will you do if you find that you are not able to complete a task within the scheduled deadline?

If I realize that I am not going to complete a task on time, I first assess which parts of the work require more time and why. Then I inform the manager or team about possible delays, and suggest solutions: for example, prioritizing key functions, reallocating tasks, or seeking help. It is important not to hide the problem, but to find joint ways to solve it. I also try to optimize the process to speed up execution without losing quality.