"Creation of a Variation on Sears is currently unsupported"

Ecomdash currently does not support variations within ecomdash for Sears. You will have to create the variation on Sears directly, and then download the listing in. 

• To download listings, navigate to Listings-->Download Listings-->Select your Sears storefront-->Click "Submit"

You will be able to manage your inventory levels, but the variation will show up as individual products within your ecomdash inventory management.