Amazon lost 1 cartoon of my shipment and requesting proof of inventory ownership to investigate the missing cartoon

Can anyone give example for that?

Is it the invoices or what? I am the brand owner.

Thank you

It is your purchase invoice showing the amount of stock that you purchased.

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Yes, you can send invoice from supplier or courier service. Make sure the dates and information matches with the shipment.

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Invoice are only for resellers. You should have an inventory slip/packing slip of all your products that you have sent to Amazon since you’re a manufacturer. Also just incase if they’re going ask you for POD provide them the exact POD that matches the shipment details and must have a delivered status on it.
If you find this hassle on your side, I’ll be happy to help you and recommend you to an agency specialize in reimbursements.

Good luck on filing your claims!

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If Amazon lost one cartoon from your shipment and is requesting proof of inventory ownership, you can provide invoices, purchase receipts, or manufacturing documents that show you’re the brand owner and the rightful owner of that stock. These records confirm your inventory details and help Amazon verify the claim during their investigation. For more business insights and updates like this, you can also check blacktoon updates regularly.

I’ve seen this across almost every account I manage. So I want to share what I’ve learned and what I’ve been personally implementing over the last 6 months to recover maximum reimbursements from Amazon.

First, let’s understand how Amazon actually reimburses. Amazon does not care about:

  • Your sourcing cost

  • What you entered in the backend

  • Your margins

They calculate reimbursements purely based on selling price.

From my experience, Amazon usually reimburses around 25–30% of the selling price.

Example:
Product sells for $30 → reimbursement ≈ $9
Now here’s where most sellers lose money.

In most businesses, inventory cost is around 50% of MSRP.
So if your product costs you $15 and Amazon reimburses you $9 — you’re already at a loss.

Yes, sometimes you get lucky:

  • Source at $6

  • Sell at $25

  • Amazon loses it

  • Reimbursement ends up profitable

But that’s the exception, not the rule.

For most products, Amazon-lost inventory = real money lost if you stop at the automated reimbursement.

Here’s what actually works 👇

Once Amazon issues the reimbursement:

  1. Open a manual case

  2. Submit your invoice

  3. Expect an automated rejection (this is normal — don’t panic)

This is where most sellers give up.

The key is how you respond after rejection.

Your wording matters more than anything.

You’re not asking for profit.

You’re requesting reimbursement of the manufacturing / sourcing cost backed by a valid invoice.

If you structure your appeal correctly and use the right language, Amazon does reimburse the inventory cost.

You’ll still lose:

  • Prep costs

  • Shipping to FBA

But you recover the largest chunk of your capital, which is Inventory.

Using this exact approach, I’ve been able to recover close to 100% of inventory cost across multiple accounts I manage. We’ve stopped taking losses on lost inventory and made reimbursements work in our favor.

If you’re selling on Amazon and not doing this, you’re leaving money on the table.

I’ll be sharing more detailed breakdowns and templates soon so other sellers can implement this properly, because Amazon reimbursements don’t have to be a loss if you know how to handle them.