Choose Failed to Publish within Listings.
The reason for each failed listing is noted below the title. You're able to select More Details to view additional information about why the listing failed to publish to eBay.
You may choose to individually or bulk edit the failed listings in order to correct them and publish to eBay. To edit in bulk, select the listings and choose publish to eBay. You're taken to a bulk edit page to review & correct the information that caused the listings to fail.
To edit individually, click on the title of a listing, the error will carry over to the top of the next page.
In the example below, Brand is a required eBay attribute for the selected eBay category as indicated by the red asterisk. To correct this listing, we would enter a Brand or use unbranded, then select save & publish.
Once published, the listing will move to the Published Products tab.