Allow me to help you overwrite your inventory file, kdy1.

In QuickBooks Online (QBO), selecting Overwrite all values for each product or service with the same name replaces the details of the existing item instead of creating a new one. Since this isn't working on your end, I suggest performing basic troubleshooting steps. The stored cache in your browser could be causing this behavior. Start by opening your QBO account in a private or incognito window. Use either of these shortcut keys:

• Mozilla Firefox: press Ctrl + Shift + P
• Internet Explorer: press Ctrl + Shift + P
• Safari: press Command + Shift +N

Once you can overwrite the file, return to your regular browser and clear its cache to refresh the system and start with a clean slate. If it still doesn't work, use other supported browsers.

For further details about importing a list of your products and services, refer to this link: Import products and services into QuickBooks Online.

Moreover, I'll share this article to help you change product and service item types in QBO: Modify item types.

I'll be here if you have other questions about updating your inventory or importing data in QBO. Just add a reply below.