How to make credit memo:

When a customer returns defected goods to us we make credit memo for that purpose.

Click on the “Task” and then “Credit memo”:

When you click on the window will appear like:

Select “Customer ID, Date, credit No”. And when you select the Customer ID window will turn to:

Now select here the invoice number that is required for this customer and fill the returned quantity and than simply click on the “save” button.

 so this is for "Credit memo".

Than you..!!!