If there are products with highly similar product attributes under the same seller, the product is considered to be duplicate.
For example, if Seller 123 has 2 products – Product A and Product B with very alike product details as below, it is considered as duplicate product.
Under Lazada Policy, we lock the duplicate products that have lower sales, less history of add to cart, and less click rate. When the product is locked, it will fall under “Policy Violation” tab in product overview page.
By automatically removing the product that is not performing, it allows the rest of your products to come up higher from the search result, have higher chances to be looked at, thus better chance to make a sale.
However, if you believe your product is not a duplicate and should not be locked, please file an appeal to here.