Error message
Title : Le titre du produit est en doublon dans votre soumission / The product title is duplicated in your submission
Translation
The product title is duplicated in your submission
What does this error mean?
Multiple products with different SKUs are being submitted with the exact same title, which is rejected by the marketplace.
How to solve this error
Step 1: Identify your specific SKUs that are sharing identical titles in the feed.
Step 2: Change the title's name so it is unique for each SKU. You can differentiate titles by adding specifications like "size" or "colour".
Step 3: Perform a product push to update your new titles.