Your question is Integrating Multiple Data 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 combining data from several systems into one pipeline and want to think through the common integration issues before building it. The goal is to make the data usable for reporting and downstream workflows without creating constant cleanup work.
What are some common issues you run into when integrating multiple data sources?