To convert Sales order into Sales invoice, please follow the steps below,
Step 1 : Please click on “Sales order” under Quotations section, and click on “More” option (…) of the sales order you want too convert.
Step 2 : Click on “Convert” and select “Convert to Sales”.
Step 3: Check the necessary details and click on “Save” button.
Sales order will be converted to Sales invoice, and the Sales order status will be shown as converted.