A draft can be updated as many times as we want. Updating a draft is a very simple process. This can be done by using a below process.
Business Profile > Sales > Sales Order New > Abandoned Drafts
Identify the draft to be updated from the filters and search options provided and click on the draft to be updated
Details of your draft will be opened in a form which can be changed as per requirement.You can modify the details of draft as you wish to
Click on “Save Draft” update draft to update details of the draft or you can convert the draft into the invoice by clicking on “Save Invoice”