Your question is Reconciling Data Across Sources. 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 working with data that arrives from multiple internal systems before financial analysis begins. The sources do not always line up cleanly, so you need a repeatable way to compare records, resolve differences, and produce a trusted dataset.
What is your process for reconciling data from different sources before analysis?