Keep track of when and why your data is being changed
Every time someone changes some information it is recorded in that product's activity log. That way you can always track changes to product data over time. You also know who to contact to discuss any adjustments. It leads to much greater clarity around managing your product information and staff are generally a lot more careful.
But, the activity log does not stop at products. The activity log exists at every level; product/attributes/channels/etc. Any changes made within the configuration menu are logged in the activity log.