Hi
I recently updated my sourcing costs for FBA inventory reimbursement purposes and submitted the invoices, but Amazon rejected them, stating they do not meet their standards.
I contacted support regarding this, but unfortunately, they were not very helpful.
How are you all dealing with this issue?
I gave up trying this 
Tried updating and appealing it a few times but eventually decided my peace of mind is far important than this crap.
I feel like this is something a class action lawsuit could resolve. It’s literally an unfair business practice. Amazon has no idea of the actual product costs. They just decide whatever they think is fair compensation. But, it’s our products that they negligently failed to handle correctly and we have to take the loss. It’s not right. Average price is the only fair way to compensate. Either that or do better and not lose our inventory in the first place.
Out of 20, they approved 1 and they denied 19. I tried opening cases to understand why they denied them. They sent me some crappy link to FBA policies. I gave up and have to treat it as business loss.
So what do you do? If you just don’t appeal, you’ll be loosing money.
I tried to add my COGS and it gets declined, no time for that bullshit anymore.
Exactly. Same here.
Many sellers are running into the same issue where Amazon rejects invoices or disregards updated sourcing costs and instead reimburses based on its internal fair market value, which often ends up being much lower than the actual cost. Amazon generally only accepts invoices that are from clearly recognized, verifiable wholesale suppliers, showing the exact product name, quantity, unit price, and matching your registered business name and address. Even then, if the ASIN has a history of low sale prices or minimal data, Amazon often overrides your COGs with its algorithm-based valuation. To deal with this, sellers focus on maintaining strong sales history at their desired price point and avoid lowering prices unnecessarily, since average sale price impacts reimbursement value more than submitted costs. Some also submit clean, unbundled invoices (excluding shipping or prep costs) with supplier contact info that Amazon can verify.
Submit official invoices showing your name, purchase date, product details, and costs that match your listings. You can’t use quotes or packing slips, so ask your supplier for proper invoices.