Xero Bridge by Parex

This is by far the most important app we use for our store. Without it we simply wouldn't be able to have integrated Xero correctly.

We have been using Xero for 7 years, and required that individual Shopify orders be synced and invoices be created for the existing customer in Xero. We tried many other apps (LinkMyBooks, A2X etc.), but none offered this feature/worked as well as this app.

I've been in contact with the support team many times in the past 6 months, and they always reply promptly. Worth every penny.