Yes, the customers can request a RMA based on quantity and seller wise using the Magento 2 Marketplace RMA System.
For example – The customer has placed an order for 3 bags. But the customer has received 2 damaged bags out of three. In this case, the customer can easily create an RMA for the damaged bags as per the below image.
What if the customer has placed an order having multiple products belongs to different sellers. And, the customer wants to replace/cancel/refund the certain products which belong to different sellers. In this case, the customer can create the RMA according to sellers. The customer simply selects the seller of the product which he wants to replace/cancel/refund. Please refer the below images –
The above two RMA has been created for same order – #000000197 but for different seller products. Because this order contains the multiple products belongs to different sellers.
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