Your customer fills it, not you picking a size, dressing it with a ribbon or a card, and choosing from your own products and photographs
One line in the basket at one price, with the order listing every single thing inside it
Your products, your rules scoped by category or by name, with premium lines priced higher and capacity counted in units
Figures an order report cannot give you boxes begun against boxes bought, what sold inside boxes, and stock that follows the box both ways
Most bundle apps decide what goes in the bundle. Packhouse hands that to your customer.
They pick a size, dress it with a ribbon or a card, fill it from your own products and photographs, and write a gift message. It reaches the basket as one line at one price, and the order lists exactly what is inside, so whoever packs it never has to ask.
SETTING IT UP
A box is a list of steps: which box, a choice, the fill, a message. Scope the fill to categories or to named products. Charge more for premium lines. Count capacity in units, so a cake takes two places where a bar takes one. Offer to fill the rest for them. Nudge a bigger box where one would fit. Match your own colours and type.
WHAT YOU GET BACK
Boxes begun against boxes bought, which is the abandonment figure orders alone cannot give you. What sold, with every box opened into its contents. And stock that follows the box: contents come off the shelf when one sells, and go back on if the order is cancelled.
WHAT IT DOES NOT DO
It reads your products and orders and adds a line to a basket. It does not rewrite your products, change your checkout, edit your orders or touch your customer list.