Your SKU is the link between an item in Acenda and its listing on each marketplace. Acenda uses it to send inventory and listing updates and to match incoming orders to the right item, so changing it on an item that's already selling needs care.
Short answer: You can, but Acenda strongly recommends that you don't change the SKU on a live listing. If you need a new SKU in Acenda or your own systems, keep the marketplace SKU as it is and connect the two with a SKU alias.
Warning: Changing the SKU on an item that's already listed can stop orders from importing, stop inventory updates from reaching the listing, and create duplicate listings that the marketplace rejects.
What happens when a SKU changes without an alias
Orders stop matching. The marketplace keeps sending orders with the old SKU. If no item or alias in Acenda has that SKU, the order can't be routed. A banner on your Dashboard shows Orders Need Attention: There are currently X orders for skus that do not exist in our system, and the order shows An order was placed for a sku that does not exist in our system. See Why am I seeing the "Orders Need Attention" error?
Your existing listing stops getting updates. Acenda sends updates using the item's current SKU. The listing under the old SKU can stop receiving inventory, price and content changes.
The marketplace may create a second listing. Many marketplaces treat a new SKU as a new item. Because it has the same UPC or barcode as your live listing, it's often rejected as a duplicate.
Recommended: use a SKU alias
An alias lets an item use one SKU on a specific sales channel while keeping a different SKU in Acenda. The marketplace listing stays exactly as it is, and Acenda translates between the two.
To rename an item's SKU safely:
Click CATALOG > Items in the sidebar.
Search for the item.
Click the eye icon on its row to open it.
Click the Aliases tab, then Add new alias.
Choose the sales channel in Subscription.
Enter the current SKU exactly as the marketplace has it in SKU.
Click Add.
Repeat steps 3 and 4 for every channel where the item is listed.
Open the Details tab and change the SKU field to your new SKU.
Tip: Add the aliases before you change the SKU. That way there's no gap where orders arrive for a SKU Acenda doesn't recognize.
Good to know about aliases:
Each item can have one alias per connection, and only the SKU field is used.
Once an item has an alias on a channel, Acenda matches that channel's orders by the alias only, not the Acenda SKU. Make sure the alias exactly matches what the channel sends, including dashes, spaces and letter case.
When you add a missing alias, Acenda automatically re-checks pending orders from the last 7 days.
To update many items at once, use the SKU Presentation import. A blank alias cell in that file deletes the existing alias.
For full instructions, including bulk imports, see How to Use SKU Aliases in Acenda.
If you must change the SKU on the marketplace (high risk)
Only do this if keeping the old marketplace SKU isn't an option. You proceed at your own risk.
Check with the marketplace first.
Open a ticket with the marketplace (for example Target Plus, Walmart or Amazon).
Confirm whether they allow a SKU change on an existing listing and what happens to its reviews, ranking and inventory.
Clear open orders.
Click ORDERS > Orders and make sure no pending or in-progress orders use the old SKU. Orders in flight during the change may not be fulfilled correctly.
Update your other systems.
Change the SKU in your ERP, WMS, 3PL, shipping and accounting tools so stock and shipments stay in step. If a fulfillment provider will keep using the old code, add an alias on that connection instead.
Make the change.
Follow the marketplace's own process.
Update the SKU field on the item's Details tab in Acenda to match.
Check the results.
Confirm the first new order under the new SKU imports into Acenda and reaches your fulfillment system, and that the marketplace shows the correct stock.
Keep an eye on the listing for the next few days.
Troubleshooting & FAQ
"Orders Need Attention" appeared after a SKU change: Click Fix Orders in the banner, open an affected order and note the SKU on the flagged line. Add that exact SKU as an alias on the item for that channel. Recent pending orders are re-checked automatically.
Orders stopped matching right after you added an alias: The channel is still sending a different SKU. Correct the alias so it matches exactly, or delete it.
Inventory or content changes aren't showing on the marketplace: The listing may still use the old SKU. Add an alias with the old SKU for that channel.
The marketplace rejected the item as a duplicate barcode: It created a new listing under the new SKU. Add an alias with the original SKU so updates go back to your live listing, and ask the marketplace to close the rejected one. See How to fix marketplace listing errors.
Related articles
Still stuck? Contact Acenda Support and tell Acenda support the item, its old and new SKU, and the sales channel involved.
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