I cant create a new receipt for a product that I already created. When I try to "add product or service", it says, "Error adding item". How can I solve this?

Hi there, acoduman.

I'll provide information and steps on how to resolve the error that you're receiving when adding a product or service in a receipt.

There are times that a cache full of history and temp files can cause unexpected behaviors, such as receiving an unexpected error. That said, I suggest logging in your QuickBooks account using a private browser. This way, you're able to verify if the issue is caused by a full cache and to disable it from saving your browsing data. Please use the keyboard shortcuts blow based on the browser you're using. 

• For Firefox, press Ctrl + Shift + P.
• For Chrome, press Ctrl + Shift + N.
• For Safari, hold down Command + Shift + N.

If it works in incognito, I recommend clearing the cache of your regular browser. This removes the history or log of sites so you can start with a clean slate. If the steps above didn't work, use another supported browsers as alternatives.

Please refer to the articles below on how you can adjust the inventory item's quantity and how to categorise the products and services you sell.

• Change product and service item types in QuickBooks Online.
• Group your products and services into different categories.

Please let us know how this goes. You can add more details by leaving a comment down below. I'm always here to help.