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home/FAQ/FAQ FastBay/FAQ FastBay – Error codes and debug mode/While sending an eBay product, it issues the error “The specified UUID has already been used; ListedByRequestAppId”
Ricerche popolaridebug mode, mandatory specifications, publish first product

While sending an eBay product, it issues the error “The specified UUID has already been used; ListedByRequestAppId”

eBay returns this error when, using the “Enable duplicate title detection” feature,

an “unique identifier” previously used by the module is the same of the current item (you can see the duplicated item number as the “item ID” in the error message).

The unique identifier is a code that the module generates and sends to eBay based on the title of the item + the target eBay country / markteplace in order to prevent two items with the same title from being published in the same account

(prohibited and penalizing practice on eBay).

Therefore check that an item  with the same title has not already been sent by the module and is actually on eBay.

If you intend to publish the product anyway, change the title slightly so that eBay will not detect it as duplicated.

If you wish, you can “reset” the history of the unique identifiers at your risk, so that new IDs are generated by changing the “unique ID” in the module configuration to a different and unused number.

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FAQ FastBay – Error codes and debug mode
  • While sending an eBay product, it issues the error “The specified UUID has already been used; ListedByRequestAppId”
  • When downloading an order I get the error ‘Cannot validate the order – Check your Prestashop products’.
  • During a feed type synchronisation (Fast Sync) I get the error: uploadFile: Task task-1-xxxxx cannot upload a file.
  • During a product synchronization I’m getting the following error : DEPRECATED: Please migrate to the Sell Feed API (https://developer.ebay.com/api-docs/sell/feed/resources/methods#h2-task)
  • Synchronization to eBay fails with the error “eBay security rules only allow HTTPS resources in listings, not HTTP. Update or remove the HTTP resources. “
  • When synchronizing a product on eBay.com / co.uk (US or GB) I get the error ” WeightUnit must match the default eBay values. “
Vedi tutto 28  
Categories FAQ
  • FAQ Danea Import 1
    • FAQ Danea Import – Prices 1
  • FAQ FastBay 33
    • FAQ FastBay – Installation 5
    • FAQ Fastbay – Configuration 11
    • FAQ Fastbay – Sync 51
    • Orders 6
    • FAQ FastBay – Error codes and debug mode 29
  • General topics 8
  • FAQ AmazonSync 18
    • FAQ AmazonSync – Domande frequenti 16

  While sending an eBay product, it issues the error “SKU NUMBERS DO NOT CORRESPOND TO THE MANAGEBYSKU OBJECT SPECIFIED BY ITEMID”

THE SYNCHRONIZATION TO EBAY RETURN THE FOLLOWING ERROR: Listing is missing required item specific. Add {0 \} to this listing, enter a valid value and try again.  

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Ricerche popolaridebug mode, mandatory specifications, publish first product