the field refers to the warehouse, that is, the product has a certain article, but in the preg it is the barcode of the goods in the warehouse that comes.
The project is old, everything was done with product filters, not with a model range or something else, but with filters. That is, the product has a filter, the filter has a barcode. There is a product barcode value in stock.
Here is the order
https://box.vals.net.ua/admin/customorder/order/36766/edit/here is the field