model#760: a printable PDF with one hanger tag per garment (58×140 mm): the unit code (SAYE-000201) in large type, as Code128 and as QR, the request number and what the garment is, in the store's language. No customer data and no status. Printable by the request's prerequisites and stage (verified, in Verification, past the shopper and the validation, published or closed by the approver; a cancelled one only if verified), so a published unit can be printed again; rejected lines never get one. Pass itemId to print one garment, or itemIds (comma-separated) for several. A unit sold by the user's store whose request belongs to another store of its family can be printed alone (itemIds required). 400 UnitCodePrefixMissing while the store has no unit code prefix.