Thank you for the information! Will try this to my client... 

Hi Peggy8!  Veronica Wasek have bunch of great video on Shopify and Quickbooks.  AS for you question, you can check her video below. Part 1: https://www.youtube.com/watch?v=sxaCVSkRhPEPart 2: https://www.youtube.com/watch?v=wrvwwAGA8nw  Just get the ...

Have you try to use Variants?  This feature allows you to track the inventory for each specific option within a product. To set this up, you'll need to create a product for each option (the individual bra and knicker, as well as the Amy set). Within ...

You need an integration that creates an invoice with a description of the items, not an app that sums up the transactions. My client also wants this process, and we use QuickBook Connector.

Great, idea. Does the zapier can also transfer inventory from shopify to QuickBooks?

I use bookkeep for some of my client or Quickbooks Connector for free integration.