Learn how to solve Invalid Mutli-SKU item ID supplied with variations issues on your eBay listings

While on your listings with the error, check to see if the listing has a Market ID. You'll see this at the top of the page, along with your SKU, Quantity, and Listing Type.

If the listing has a Market ID, start below. Otherwise, skip to the second option. 

If you created listings using smart (+) create

eBay as a platform doesn't allow you to turn a single listing into variations. Using smart create will attach existing listing data based on how they were grouped on your primary marketplace. 

The easiest way to fix this is to simply End & Relist the listing. You can do that by going to the primary eBay listing, and clicking this button.

If the listing imported or was created with an incorrect category

eBay has a set list of categories that they let you list variations under. You can create listings with variations in several eBay categories. Some common examples:

You can switch the categories of the eBay listings from the eBay listings edit page on the Category tab as shown below.

Once you have nestled the variation listing within an appropriate category, click Save Changes. This will trigger a sync from Listing Mirror to eBay. 

If your listings were incorrectly added to variations

Within Listing Mirror, you're able to split your variations into their own listings. We have an entire article dedicated to this topic. How-To: Split Variations