Hi, When i create an estimate, all is ok. However when i create an invoice, it's impossible to find the products which are in the QB database. why ?

Hi there, @user97551.

Welcome to the Community. I can share some troubleshooting steps so you can find the products when creating an invoice in QuickBooks.

You should be able to locate the items under the Product/Service column. We can use a private browser to open your account and see if the products show up. It doesn't use the cache, which stores data that creates browser-related issues.

Use these keyboard shortcuts depending on the browser you're using:

• Google Chrome: press Ctrl + Shift + N
• Mozilla Firefox: press Ctrl + Shift + P
• Microsoft Edge: press Ctrl + Shift + P
• Safari: press Command + Shift +N

If you can see the products, let's switch back to the regular browser and clear its cache & historical data. This helps to restore the default setup of the browser.

In case private browsing doesn't work, I suggest using another supported web engine to get the best and most secure experience with the program.

I've also attached an article you can use to learn more about entering invoices in QuickBooks: Create invoices in QuickBooks Online.

You're always welcome to post any questions you have in this space. I'll be happy to help you some more. Have a good day.