To import eBay categories, go to Settings > Channels and under your eBay section you will a field entitled “Import Categories”:
Checking the Import box and hitting “Save Settings” will import your categories. If you want to convert your categories to align to SureDone storefront categories, you can do so by checking the Convert box too, while if you check File Only in addition, then the system will generate a file, that you can download and review first without making any changes to the category data in the system.
Checking both Import and Convert boxes and clicking “Save Settings” will successfully import and convert your categories keeping in mind that it might take a few minutes for the process to complete.