Amazon's self-fulfillment logistics has many options, the most common of which are FBA (Fulfillment by Amazon) and MFN (Merchant Fulfillment Network).

FBA is a logistics service provided by Amazon. Sellers store their products in Amazon's warehouses, and Amazon is responsible for logistics and after-sales service. Sellers only need to pay a certain fee. The advantages of FBA are that it can improve logistics efficiency, increase sales, and improve customer satisfaction. It is suitable for sellers with large sales volumes.

MFN is a way for sellers to manage orders and logistics by themselves. Sellers need to be responsible for storage and processing orders, as well as shipping and after-sales service. The advantage of MFN is that it can better grasp inventory and order processing, but sellers need to bear the costs and risks of logistics and after-sales service.

In general, for sellers with large sales volumes, using FBA is a more cost-effective option. But for sellers with small sales volumes or sellers with special needs such as inventory management, MFN may be more suitable. However, the specific choice still needs to be decided based on the seller's own situation.