Your question is Handling Conflicting Priorities. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
If you get a customer request which is of high priority and your manager gives a task on the same day with equally high priority, what will you do?
Explain how you would clarify urgency, assess business impact and deadlines, communicate the conflict, and agree on a practical order of execution. The interviewer is evaluating prioritization, ownership, customer focus, and your ability to raise a conflict early rather than silently missing a commitment. Describe the specific information you would gather, who you would involve, and how you would keep both stakeholders informed. A strong response should show that you do not choose based only on seniority, and that you convert competing demands into an explicit plan with clear expectations.