Your question is Aligning Unrealistic Customer Expectations. 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).
Tell me about a time you worked with a customer whose technical expectations were significantly different from what your platform could realistically deliver. How did you reset expectations, align on a workable path forward, and maintain trust through that conversation?