1. Click on Setup New Feed on the dashboard and choose to update existing products in the store.
2. Click on Continue and click on the Start New
3. Then, choose Unleashed in the connection method.
4. Simply add the API key and API ID in the respective fields in click on Next
5. The fields are mapped, you can remove any fields that you wish to neglect from updating and proceed to finish the setup.
6. You can start the process.