You set up a data collection workflow. It works. You move on. Then three weeks later, the numbers look off, a column is empty, or the whole output is blank. You spend an afternoon figuring out what broke and why. This is not an edge case. It is one of the most common experiences in any ongoing data extraction project. The setup is never the hard part. What happens over time is where things get complicated. This post walks through a realistic extraction workflow, stage by stag