Dropshipping - Collect the Incoming invoice from AliExpress or other supplier

[Unicornia8]

Hello guys,

I am starting now with dropshipping model but really there many confusing topics about the accounting theme.

For the bookkeeping you should have a list of incoming and outcoming invoices. Concerning the outcoming is pretty simple there are many software to link with Shopify, the one which i do not understand is collect the  incoming invoice from AliExpress (or similar website). 

How do you collect them? Are they necessary to bookkeeping your Company?

Let's talk about.

Thank you so much!

[Unicornia8]

None pays taxes here?