To change the product price while creating an invoice, please follow the steps below:
Step 1: Go to Sales → Invoices → Create Invoice.
Step 2: Select the customer and add the products you want to include in the invoice.
Once you select the product if will fetch the price added in the default price added in the product detail
Step 3: Change the product price in the Rate/Price with tax column based on your requirement.
Step 4: Click Save to create the invoice with the updated price.
