The ninety-day trial window
Set the target when the PO is cut. At the review the item hits it, gets a written reason to stay, or exits.
Most trend items are brought in on a feeling and taken out on a feeling, and the store learns nothing either way. The trial window is how you learn.
Beta members only
Members read the rest
The full page, and the rest of testing a trend on your shelf, is open to beta members at no charge. One email, no password.