Which subscription allows for custom fields

Good evening, yourwindowcoveri.

Thanks for reaching out to the Community for support. I'd be happy to provide some information.

In order to use the custom fields feature, you would need to be subscribed to QuickBooks Online Plus and Essentials. If you already have this level of subscription, I recommend taking a look at this article on how to add custom fields to sales forms and purchase orders.

If you have any other questions, feel free to reach back out here.