UFT

 UFT is an availability and speed metric focused on Amazon’s fastest delivery promises.
It shows how often a product can be shipped to customers using ultra fast fulfilment options, such as same day or next day delivery, based on where the inventory is held.

This metric compares:

• the actual availability of ultra fast delivery for an ASIN
  with
• the intended ultra fast selection Amazon expected to provide.

If an ASIN is often stored in the right FCs and can reach customers with ultra fast shipping, the UFT percentage is high.
 If inventory is placed in non optimal FCs or not replenished properly, UFT drops.

What affects UFT:

• Inventory location within the FC network
• Replenishment accuracy
• Regional demand shifts
• FC capacity
• Stockouts in ultra fast nodes
• Incorrect forecasting

Why Amazon uses UFT:

• To monitor how well the network supports fast delivery promises
• To identify ASINs that need better inventory placement
• To understand gaps between planned and actual selection availability
• To ensure Prime customers consistently receive fast delivery options

Benefits for Amazon:

• Improved delivery speed performance
• Better FC inventory distribution
• More reliable Prime experience

Benefits for vendors and sellers:

• Higher conversion rates for ASINs eligible for ultra fast delivery
• Improved Buy Box performance
• Stronger competitiveness in fast moving categories
• Reduced lost sales due to slower delivery promises

Example:
Amazon plans for an ASIN to be available with same day delivery 90 percent of the time.
During a given period, the ASIN is actually eligible 72 percent of the time.
UFT equals 72 percent, indicating a gap between intended and actual fulfilment speed.

Why It Matters:
UFT highlights how well inventory is positioned to support ultra fast delivery.
High UFT means customers consistently receive fast shipping options, boosting sales and customer satisfaction.

In short:
UFT (Ultra Fast Track) measures how often an ASIN can be shipped with ultra fast delivery compared with Amazon’s intended fast selection plan.