When i generate invoice there is not showing units

Hello, @growlenterprises.

Let's review how your invoice format is set up in QuickBooks. This way, we can make sure that the Unit column is enabled. I can guide you in doing so.

1. Go to the Gear icon.
2. Choose Custom Form Styles.
3. From the Custom Form Styles window, locate the invoice template you're currently using.
4. Click Edit from the Action column.
5. Select the Content tab.
6. Pick the Pencil icon for the content section.
7. Mark the Unit tick box.
8. Click Done. 

You can read through this article to learn about adding a personal touch on your sales forms: Customise invoices, estimates, and cash memos in QuickBooks Online.

Also, I've added these articles to help you maximise the use of the customisation feature in QuickBooks:

• Customise sales forms by location

• Email and customise sales form
• Import custom form styles for invoices or estimates

Always feel free to leave a comment below if you have other questions about customizing your sales forms. I'm always here to help.