Your question is Test Strategy for New Feature. 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).
You're asked to test a new customer-facing feature before release. The feature is still evolving, and different partners may care about different outcomes, from core functionality to regression risk and release confidence.
How do you approach writing test cases for a new feature?