What subscription do I need to connect nutshell to quickbooks?

Thanks for posting your concern here in the Community, Alison. I'll be sharing information about integrating Nutshell with QuickBooks Online (QBO).

Numerous tools and add-ons are available through QBO that effortlessly integrate to automate processes, bookkeeping, invoicing, data entry, and more. These interfaces simplify processes to aid in the smooth operation of small and medium-sized enterprises.

As of now, we're unable to support integration with Nutshell. All QBO versions have invoicing features, so there's no need for a third-party app to have that option.

In the meantime, we recommend reaching out to Nutshell's customer service. This way, we can inquire if they allow QBO to be linked in their app. 

Moreover, there are two ways to record sales transactions in QBO. If your customer paid for the product or service at the time of sale, we generate a sales receipt to complete the transaction and record it in your books. However, if your customer makes a payment on the invoice, we'll have to link it to the invoice to balance your accounts.

Let me know in the comments below if you have clarifications about app integrations. We'll be right here to assist you anytime. Have a great day ahead!