Reports and accounting

Hello there, @lessenberry-anim.

Let me share some information on how the custom field works in QuickBooks.

When setting up a drop-down list custom field, you can add up to 100 options or items. Once you used-up all the available drop-downs, the Add item link will no longer be clickable. 

You can read through this article for more detailed information: Create and edit custom fields in QuickBooks Online Advanced.

Also, I've added these articles to help you manage your custom fields:

• Filter, search, and sort with custom fields
• Use custom fields in reports in QuickBooks Online Advanced

Swing by here if you have other questions. I'm always here to help.