Products without weight information cannot be made available for purchase. According to Joom's platform logistics rules, some orders must be fulfilled via online shipping, and weight information is one of its required attributes.

Product Shipping Weight Requirements

1. You must specify product weight for every product variant;
2. Product weight's unit of measurement is kilograms (kg);
3. You must provide the exact shipping weight for the product. 

Inaccurate shipping weight may lead to additional logistics costs and extension in the delivery period, and in some cases, failure of delivery. All this will have a negative impact on a merchant's store performance metrics.

• If the shipping weight you provided is less than the factual shipping weight, the client cannot pay the full cost of delivery. In such a case, the difference in the factual logistics cost will be compensated by the merchant according to IW invoice. You can find the IW invoices with the detailed order information in the Invoice page in the Merchant Panel.
• If the shipping weight you provided is greater than the factual shipping weight, your product price for clients will get higher accordingly. Thus, the product becomes pricier and less attractive to customers.

If a product doesn't have product weight specified when a customer places an order, Joom platform will set the product weight according to the product's public version (last approved product version).

What does 10% and 5 g difference mean?

For example:

• Scenario A:
  A merchant declares the shipping weight as 500 g; however, the actual weight is 540 g. The difference between the two values is 40 g, which is less than 10% but more than 5 g. One requirement is still met, and therefore we don't charge the merchant.
  
  
• Scenario B:
  A merchant declares the shipping weight as 100 g; however, the actual weight is 130 g. The difference between the two values is 30, which is more than 10% and 5 g. Both requirements are not met, and therefore we charge the merchant. 
  
  
• Scenario C:
  A merchant declares the shipping weight as 30 g; however, the actual weight is 34 g. The difference between the two values is 4 g, which is more than 10% but less than 5 g. One requirement is still met, and therefore we don't charge the merchant.

How to Add or Edit Product Weight?

You can specify product weight while creating a new product or editing an already existing one. Please refer to the articles How to Add Product and How to Edit Products to learn more details.  

If you don't know how to work with CSV files, please refer to the articles What is a CSV File, How to Upload Products via CSV File and How to Edit Products via CSV File.