GENERALTRADINGOMAN
Level 1

Linking Expenses such as Transportation & Delivery for a Client Invoice along with Product Purchase

Before you link me to the existing thread on the community for "Linking Expenses to Invoice" Kindly hear me out. 

Context. 
Client A requires a product A1 , I find the product from Supplier B, who charges me for example $100 for the product, and a $10 for delivery. I add the markups in the invoice and create invoice for $200 for Client A in

How can I link the 2 expenses that I paid (Product Purchase + Delivery) TO THE INVOICE of the client. 
The end goal here is to have a summary at the end of say 100 purchases with clients, I can find out which client bought from where for how much and how much I paid for purchase and delivery. 

Thanks