Please follow the steps mentioned below to add multiple products to a single invoice:
Step 1: Go to Sales dashboard >> Click on +Create Invoice.
Step 2: Add the customer.
Step 3: Select the desired product.
Step 4: Enter the quantity and Click on +Add to Bill
Step 5: Repeat the same process for all the other products that you want to add in the bill.
Step 6: This how the products will look like, now click on Save.
