Your question is Finding and Fixing Processing Errors. 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 used data analysis to identify processing errors in an operational workflow. What tools or methodologies did you use, how did you isolate the root cause, and what changed as a result?