Buyer ordered my FBA item via “Seller” channel — has anyone seen this?
Hi everyone,
I’ve run into something confusing and I’m hoping someone here has seen it before.
A buyer placed an order for one of my FBA items, but the order shows as coming through the Seller (Merchant / seller channel) rather than the normal Amazon retail/FBA flow. I didn’t change any settings intentionally, so I’m not sure why this happened.
Questions:
Has anyone experienced a buyer ordering an FBA item through the seller channel?
What usually causes this (setting, listing configuration, multi-channel fulfillment, etc.)?
What is the correct way to handle it so it doesn’t create delivery/refund/A-to-Z issues?
Which settings should I check (and where) to prevent this happening again?
Any guidance or steps to check would be really appreciated. Thank you!
Buyer ordered my FBA item via “Seller” channel — has anyone seen this?
Hi everyone,
I’ve run into something confusing and I’m hoping someone here has seen it before.
A buyer placed an order for one of my FBA items, but the order shows as coming through the Seller (Merchant / seller channel) rather than the normal Amazon retail/FBA flow. I didn’t change any settings intentionally, so I’m not sure why this happened.
Questions:
Has anyone experienced a buyer ordering an FBA item through the seller channel?
What usually causes this (setting, listing configuration, multi-channel fulfillment, etc.)?
What is the correct way to handle it so it doesn’t create delivery/refund/A-to-Z issues?
Which settings should I check (and where) to prevent this happening again?
Any guidance or steps to check would be really appreciated. Thank you!
15 replies
Angie_Amazon
Hello @Seller_kSZCywEhJQQ8J,
In this case I recommend you to contact seller support for a more clear guidance and what to do and for them to review your account and confirmed what could have happened.
To contact them, you can click here.
— Angie
Seller_Nprc5XWvdLYk9
We had this happen once many years ago - was just attributed to a glitch
NR_Amazon
@Seller_Nprc5XWvdLYk9 Thank you for providing this feedback! If you have any additional information related to this technical glitch at steps you took to resolve it, don't hesitate to share those details on this thread in-case another seller with the same issue comes across this topic!
Regards,
NR_Amazon
Seller_Nprc5XWvdLYk9
it was quite painful - we told seller support it was a glitch - we were told it was our fault and we must have had a listing for FBM - when we pointed out the product was FBA only and had always been - they said it was a glitch and did not reply to any further messages.
Seller_kSZCywEhJQQ8J
Hi , just to share what worked on my side (in case it helps anyone with the “phantom stock / wrong channel MFN order” issue).
What I did (reset steps):
Manage Inventory → for the affected SKU, I switched FBA → FBM
Then I set FBM quantity to ZERO (to make sure there is no merchant offer live)
Then I went to Manage FBA Inventory
If there was anything showing as stranded, I used Fix stranded inventory
Finally I used the “Convert to FBA / one-click to FBA” option (where available) to put it back to FBA cleanly
After doing this, the buyer-facing “Only X left” / MFN-order behaviour stopped for that SKU.
What Seller Support suggested (possible cause):
One support agent told me it can happen when there is old FBM inventory / an old merchant offer stored in the backend, and due to sync / cache issues it temporarily resurfaces. Then Amazon can mistakenly generate an MFN order even when Seller Central shows FBA = 0 and FBM = 0.
I’m not saying this is the root cause, but the reset above seems to “flush” the hidden offer state and re-sync the channel.
Seller_2PJJEd2rbDKIb
@NR_Amazon
Did this get looked at, we just had another where the product is listed as FBA, but we received the order FBM style. The order number is:
204-3379981-9995511
Thanks
Christine_Amazon
Hi @Seller_2PJJEd2rbDKIb
This situation — where an FBA item processes through the merchant (MFN) channel instead of the standard Amazon Fulfillment Network (AFN) — is a known listing configuration issue. Here's what's likely happening and what you can do about it.
What's Causing It
The most common culprit is a fulfillment channel mismatch on your listing. Amazon uses two fulfillment channel identifiers :
fulfillmentChannelName = "DEFAULT" → This means the listing is currently set to MFN (Merchant Fulfilled)
fulfillmentChannelName = "AMAZON_EU" → This means the listing is correctly set to AFN/FBA
If your FBA listing is showing as DEFAULT, it means the system is routing orders through the merchant channel even though your inventory is physically at an Amazon fulfilment centre. This can happen due to a sync issue between your listing and the fulfilment centre inventory records.
Another possible cause: if you have both an MFN and an FBA offer active on the same ASIN, Amazon's system may route the order to the MFN channel depending on availability and listing configuration. Many FBA sellers are actually set up as multi-channel capable merchants with both a DEFAULT and an AMAZON_EU channel active simultaneously.
For this specific order:
If the order has already been placed and is routing through MFN, you'll need to fulfil it yourself or contact Seller Support to investigate whether it can be rerouted
Keep an eye on your A-to-Z Guarantee and Order Defect Rate (ODR) — if fulfilment is delayed or goes wrong, this could impact your account health metrics.
Christine.
Seller_kSZCywEhJQQ8J
I have used FBA for years. A recent shipment to the Coventry fulfilment centre was delayed and took almost four weeks to check in. During the delay, several best-selling SKUs went out of stock, so I temporarily switched those SKUs to FBM and fulfilled orders myself.
When the shipment finally checked in, I received Stranded Inventory warnings. I then used the one-click “Change to FBA” option to switch the affected SKUs back to FBA. Since doing that, I’m seeing abnormal and risky system behaviour that appears to be causing orders to route through the wrong fulfilment channel.
What is happening (critical issue)
The listing shows FBA stock in stock at the fulfilment centre.
However, some buyer orders are being created as Seller/MFN (seller-fulfilled) instead of FBA.
On certain days, the quantity box appears on FBA SKUs and displays incorrect values such as 0 or 9, which do not match actual FBA available inventory.
The quantity box then disappears again at other times.
This behaviour is more likely after adding new variations to an existing parent.
Why this is urgent
This creates a serious risk of:
customers ordering what looks like an FBA offer, but the order routes as MFN, and/or
Amazon displaying incorrect availability, causing incorrect purchasing behaviour, cancellations, late shipment risk, and customer dissatisfaction.
What I have already checked
FBA inventory is physically available (not inbound only).
No intentional MFN offers or pricing issues that would explain MFN routing.
The issue began only after switching back to FBA using the one-click tool.
What I need Seller Support to do
Please escalate to the appropriate technical team and confirm:
Why orders are routing as MFN when FBA inventory is available on the same SKU/ASIN.
Whether the one-click “Change to FBA” action can leave the offer in a mixed/incorrect state (FBA inventory available but MFN offer still active or taking priority).
Whether there is a known issue with the quantity box showing incorrect values on variation listings after channel changes.
Provide the exact steps you want me to follow to force a correct FBA-only offer state for these SKUs (and confirm which report/log you checked).
If you need examples, I can provide:
affected SKUs/ASINs,
order IDs where the fulfilment channel shows Seller/MFN despite FBA stock,
screenshots of the quantity box showing 0/9, or quantities I typed in long time ago.
and the timeline of the Coventry shipment check-in and stranded warnings.
Thank you — this issue directly impacts customer experience and seller performance metrics, so I need a clear resolution and confirmation that orders will route correctly through FBA.
Seller_2PJJEd2rbDKIb
Hi @Christine_Amazon
I downloaded the category listing report and checked under fulfillment channel code and it is correctly listed as AMAZON_EU. We do have quite a few ASIN's that are both FBA and FBM but this one is only listed as FBA currently.
Thanks
Scott
Seller_kSZCywEhJQQ8J
I checked the catalogue inventory file, but the sheet contains boxed values, so Excel analysis was not working properly. I manually extracted the fields I needed into a simpler spreadsheet.
I separated SKUs showing AMAZON_EU from those showing DEFAULT. I found over 1,000 DEFAULT SKUs and 167 AMAZON_EU / FBA SKUs.
Then I downloaded the FBA inventory report and compared it with the DEFAULT SKU list. I used both ChatGPT and Gemini to identify overlapping SKUs, and both gave the same result: 18 common SKUs.
After checking those 18 SKUs, they were all items I had either:
recently changed to FBM,
deactivated,
or left in some kind of transition state.
My main question is:
Of the SKUs showing as AMAZON_EU / FBA, how many could still be ordered through the merchant channel by mistake?
I am trying to understand whether this issue only affects SKUs that were recently changed, deactivated, or stranded, or whether fully active FBA SKUs can also randomly route as MFN.
Has anyone seen this happen before?
I would especially like to know:
Is this mainly caused by stranded or transitional listing states?
Is the DEFAULT value in the catalogue file a useful warning sign?
How can I identify which FBA SKUs are actually at risk of being ordered through merchant fulfillment instead of FBA?
Any insight would be appreciated.
