IPIP

Items Per Inner Pack (IPIP) refers to the quantity of sellable units grouped together inside a smaller packaging unit - often used for logistics, prep, and carton configuration.

In Amazon’s supply chain, inner packs help with:

• Efficient handling during inbound processing
• Damage prevention in bulk shipments
• Clarity in labelling and packaging documentation
• Faster receiving at Fulfilment Centers (especially for FBA or Vendor Central)

How it fits into carton hierarchy:

• Retail unit → the individual item sold to customers
• Inner pack → group of retail units packed together
• Master carton → box containing multiple inner packs

Why IPIP matters:

• Sellers and vendors must provide accurate IPIP values in carton and PO details
• Affects Amazon’s ability to plan storage, scanning, and stocking
• Prevents over- or under-packaging issues, which could lead to chargebacks

💡 Example: If each inner pack contains 6 bottles of shampoo, then the IPIP is 6. A master carton with 4 inner packs would hold 24 retail units total.

In short:
IPIP (Items Per Inner Pack) defines how many retail units are packed inside each inner pack - essential for compliant packaging, shipping, and inventory accuracy on Amazon.