Hi guys,

I'm attempting to upload a file for products that are new to Amazon catalogue, under the file type Inventory Files for Specific Categories.

I have filled in the required information, but I get an error message saying 90009 Fatal The file's header row is missing or invalid. The header row is for Amazon use only and must not be modified or deleted. To correct this error, download the template again from seller Help and use that new copy, or insert the correct header row directly above the column headings in your existing file.

I've reuploaded it numerous times as different file types, I've tried contacting Amazon but all to no avail. I've also seen people have had this issue for years but can't find a fix.

Any help would be much appreciated