Final answer:
The customer transactions related to inventory sales are recording the product sale and receiving payment, impacting the company's balance sheet by tracking inventory and revenue. The correct answer is recording product sale and receiving payment.
Step-by-step explanation:
The customer transactions related to inventory sales are recording product sale and receiving payment. Once a company has made a sale, they must record it to keep track of their inventory and revenue. When the customer pays for the product, whether immediately or later, the company records the payment, which affects their balance sheet and ultimately reflects the businesses' financial health and cash flows. This process is distinct from transactions like receiving products or paying bills, which relate to inventory purchasing and expense management, respectively.