Balloons - different sizes

To bulk add to cart, import an XLSX file in the following format:

• each row = one product,
• 1. column – product code
• 2. column – EAN code
• 3. column – quantity (piece)
• other columns are ignored,
• header is optional (will be skipped),
• priority is given to product code, otherwise EAN,
• if quantity is not specified, 1 is added (piece)
• if both codes are missing or product cannot be found, the row is skipped.