SW

The Ship Window defines the earliest and latest acceptable delivery dates for a PO.
Amazon sets this window to ensure accurate forecasting, stable inventory flow, and proper FC capacity planning.
Deliveries outside this window - either too early or too late - may result in operational inefficiencies and financial chargebacks for vendors.

Purpose of Ship Window:

• Maintain controlled inbound flow into fulfilment centres
• Prevent inventory congestion or shortages
• Align replenishment with Amazon’s demand forecasts
• Ensure consistent PO compliance and vendor reliability

What Happens If the Vendor Misses the SW:

• Early delivery: May be rejected or accepted with chargebacks for non-compliance
• Late delivery: Triggers chargebacks such as PO On-Time Non-Compliance
• Partial deliveries: Can cause operational delays and forecasting errors

Where SW Appears:

• Vendor Central under each PO
• EDI purchase order messages
• Inbound shipment plans and routing instructions

Example:
A PO has a Ship Window of 5–10 March.
The vendor must ensure the shipment arrives at the FC no earlier than the 5th and no later than the 10th.
Delivery on the 12th may trigger chargebacks for late compliance.

Why It Matters:
Sticking to the Ship Window helps vendors avoid penalties, maintain a positive operational scorecard, and keep Amazon’s demand planning accurate.

In short:
SW (Ship Window) is the allowed delivery date range for a PO. Delivering outside this window can lead to Amazon chargebacks for non-compliance.