Seller-wise RMA creation in the module Magento 2 RMA System Marketplace Add-on is beneficial when your marketplace doesn’t have a Split order feature. Let’s see how –
CASE 1: When Ordered Products belong to the same seller:
Suppose a customer has placed an order having Product 1 and Product 2 belongs to the same seller. In this case, the customer can easily file an RMA for product 1/ product 2 simply by selecting the order Id.
CASE 2: When Ordered Products belong to the different seller:
Suppose a customer has placed an order having Product 1 and Product 2 belong to a different seller. No separate Order Ids will be generated if there are multiple seller products in the shopping cart because of no Split order feature.
Now, in this case how the customer will create the separate RMA for Product 1 and Product 2 using a single order Id? For this, the customer will file an RMA for product 1 and product 2 separately simply by selecting the seller of the respective products.