Hi there! i'm wondering if i upgrade my quickbooks to get custom fields, can i make them vissible in the list in "all sales" view, along with the usual info.

Hi kevinklinkmuller, thanks for joining the Community

Custom fields can be added to the All sales view by selecting the small cog > tick under Columns. 

Custom fields are available in QuickBooks Online Essentials, Plus, and Advanced. You can upgrade your plan at any time to activate custom fields from the Subscriptions and billing page.