Integration with Shopify e-commerce platform

I run an e-commerce store on the Shopify platform and have been using InvoiceOcean for over a year now to manage my business (includes wholesale, Shopify, Amazon, and other sales channels). At the end of the month I have to manually create invoices individually in InvoiceOcean to match every purchase completed that month through the Shopify platform (same for Amazon). As the business grows and the corresponding number of invoices, this is becoming a very time consuming task. It would be great if you created integration between InvoiceOcean and Shopify, where an invoice would be generated automatically, or with minimum manual effort after each purchase through Shopify. This can be done through their app system (https://apps.shopify.com). I think there is a good business case for you to do so as Shopify is one of the largest platforms currently on the market and quickly growing. I'd be happy to upgrade to a higher plan, or purchase the Shopify app, as the time saving at month-end would easily justify this. As an alternative can I use your API to create some sort of an integration?