Hello James, Ben here - your Shopify Guru!
You may want to look at using an more robust accounting software like Quickbooks or Xero. Many merchants use these coupled with the apps available that connect those platforms and Shopify.
The apps that can help you connect to these platforms:
- Xero (Made by Shopify)
- Intuit QuickBooks® Online (Made by Shopify)
There are also some paid apps that give you more robust features but checkout Quickbooks for costs of goods tracking first with our app connecting it.
I hope this helps! Feel free to reach out if you have any further questions :)
Cheers,
Ben Czegeny - Shopify Guru
Support@Shopify.com