What determines Amazon-optimized splits for inbound placements?

Inbound placement service options and fee rates are assessed based on product size tier, shipping weight, and inbound locations. The options are provided only when your shipments qualify. Factors that affect the number and cost of inbound options include the following:

• Item size: whether the item is small standard, large standard, or large bulky.
• Weight: unit weight for small standard. We’ll use the greater of dimensional weight or unit weight for large standard and large bulky.
• Number of shipment splits: minimal, partial, or Amazon-optimized shipment splits.
• Inbound location: the location of the fulfillment center that you’re shipping to. For instance, there may be higher fees for shipments sent to inbound locations in the West compared to other parts of the country, or locations with limited capacity availability.

To maximize the number of inbound shipment options and fees, try the following:

• Create separate shipments for standard-size items, non-standard-size items, and each special handling category.
• Ensure the item mix and item quantities are equal across all boxes.
• Increase the number of boxes.

For more information, read FBA inbound placement service fee.