How do I upload inventory?
Click the 'Upload Inventory' link under the 'Inventory' heading in the Control Panel.

Step Two: Open the upload tab
Click the 'Upload' tab to access the inventory upload section.

Step Three: Choose the file to upload
Click the 'Choose File' button next to 'Upload File' label to select the file you want to upload.
If the file you are uploading is a purge file (it contains ALL of your in-stock inventory), turn on the toggle switch next to 'Purge inventory?' label.
Alert: Turning on this toggle switch will mark temporarily unpublish all items, and then publish everything that is quantity of 1 or greater in the upload file.
If the file does not include your entire inventory, keep the toggle switch off.
Step Four: Begin upload
To start the uploading process, click the 'BEGIN UPLOAD' button.
Tip: If you have turned on the toggle switch, then it will open a new window to 'Confirm Purge' like in the example below. Click on 'YES' to continue.
The changes to your inventory will now be reflected on your website as well as your connected marketplaces.