eBay is constantly updating its Categories and lists of mandatory Item Specifics.

If you get the error message “The item specific {Some Specific} is missing. Add {Some Specific} to this listing, enter a valid value, and then try again", you’ve missed one of the updates and there are some unset required Item Specifics in most of your items


Please note that it’s really important to solve the issue because if your items have at least one unset required Item Specific, product data cannot be updated on eBay.

It takes several steps to fix such type of an issue:

  1. First and foremost is the upgrade of your M2E Pro. See our article about the upgrade to find the most convenient method for you Magento 1 and Magento 2.
  2. After you upgrade your M2E Pro, you will need to go to eBay > Configuration > Marketplaces and click Update for marketplaces used in Listings.
  3. The last step would be to go eBay > Configuration > Categories and check all the used Categories for new required Item Specifics which need to be set up.

Watch a video Magento 1 and Magento 2 on how to update marketplaces and add missing Item Specifics.