Hello

Please use this to clear old invenotry- How do I Delete Inactive Inventory Items

You can then make sure that your inventory file has this layout before you import - How do I export & import inventory items

Please check and see if this is helpful?

Regards. 

Hey hey Honeydew Market 

I have a small request. Could you please take a look at the knowledge base article shared with you? Let me know if it was helpful by clicking on the "verify answer" button.

Sharon