This error started appearing as of January 20, 2025 and is caused by a change in the MercadoLibre API.

The error reads "Validation Error"

This error occurs when publishing to MercadoLibre properties that were entered in Edit MercadoLibre under Properties

Solution

This error has a simple solution:

  • Go to Properties > Publication > MercadoLibre > Edit.
  • In the "Property data" section, modify an item, for example "Orientation" (if it was North, change it to South)
  • Save the changes
  • Change the item back to its original value (from South to North)
  • Save again
  • Go to Publication and publish. The error should be resolved

If the error persists, report the problem stating "I can't publish property code xxx-xxxxx on MercadoLibre" and our Help and support team will resolve it.