1. Navigate to the Sales Module> To Invoice> Orders To Invoice.

2. Select the Sales Order which you need to Invoice.

3.Click on Create invoice.

4. You will get these options. Click on the required option. For this example, I will choose Regular Invoice.

Then click on Create and View Invoice.

5. The Invoice will open up in Draft Stage. Add the Invoice Date. Add the Payment Reference if required. If you require to change the DueDate you can do it from here.

6. Click on Confirm to Confirm the Invoice. 

7. You will see the Invoice. 

You will be able to see the changes in the Log Notes Section.