Amazon FBA inbound trucking appointments trip up a lot of first-time shippers — PO numbers, ISA appointment numbers, Carrier Central: the terms blur together, and it's not always clear who's actually responsible for booking the appointment or what to do if you can't get one. This article walks through the key steps and common issues, based on Amazon's own Carrier Central documentation.
What Is an FBA Appointment, and How Does It Relate to a PO and an ISA?
Amazon FBA inbound trucking is not the same as a standard LTL shipment — Amazon has its own set of appointment and compliance requirements for inbound freight. Any delivery to an Amazon Fulfillment Center needs an ISA (Inbound Shipment Appointment) before it can be received; freight that arrives without a valid appointment can be refused.
Here's a detail that's commonly misunderstood: the ISA is booked by the carrier, using their own Carrier Central account (registered under their SCAC) — not by the seller directly finishing something in Seller Central. The seller's job is to create the shipment in Seller Central; the actual appointment request happens in the carrier's Carrier Central account.
How Does the Appointment Process Work?
The standard flow: the seller creates a shipment in Seller Central → shipment details (PO, piece count, pallet count, etc.) are passed to the carrier → the carrier uses their Carrier Central account to request an appointment, picks an available slot, and confirms it to get the ISA number.
Common Issues: Invalid POs, Rescheduling, and Refusals
Based on Amazon's official rules, a few things commonly go wrong:
- The PO must be valid, open, and not fully received, and the destination FC on the appointment request must match the PO — otherwise the appointment can be invalid
- Adding POs, pallets, or cartons within 24 hours of the scheduled appointment won't get rescheduled — this is a specific rule stated in Amazon's own documentation. Last-minute additions create a mismatch between the appointment and the actual freight, which can create compliance, performance, or refusal risk (whether it actually gets refused depends on what happens at the dock)
- Rescheduling is done by the carrier through Carrier Central, and whether a new slot is available depends on current capacity
- Common refusal reasons: no appointment or an invalid one (freight arrives without a prior booking), a trailer that can't be unloaded safely, or driver behavior that doesn't meet site requirements
Appointment delays — not being able to get a good slot, which leaves freight waiting outside the warehouse — are a widely reported pain point across the industry. This is based on industry observation and shipper feedback, not official Amazon data, but it's a real situation many shippers run into, especially during peak season. Plan appointment timing early rather than waiting until the last minute.
A Reminder: Amazon's Rules Change
Amazon's inbound and appointment rules get updated fairly often. This article reflects the Carrier Central process as of when it was written — always confirm the current rules in Amazon's official Seller Central / Carrier Central, rather than treating this as a permanently accurate manual.
How ShipMay Helps
Not sure how to get your FBA shipment booked, or whether your PO information is correct? Give ShipMay the PO, destination FC, and shipment details, and start a quote — we'll help confirm you have what's needed for the appointment.
Related Reading
- Case Study: When Amazon Cancels an Already-Confirmed FBA Appointment
- FBA Truck Delivery Services
- The Complete Guide to U.S. LTL Freight Shipping
- How Are U.S. Trucking Freight Costs Calculated?
- Appointment Delivery in Freight Shipping: When Is It Required?
- LTL Freight Quote Checklist
Reference
- Amazon Carrier Central, the official portal carriers use to book ISAs, and the basis for the process described in this article.
