Make the Customer field editable for the Walk-In customers from the Sales History page
To make it a bit more flexible, We are giving an option to add a customer name in the ‘Walk-In’ sales for any off-street sales that you make. You can use this feature where you do not wish to create a customer profile for that off-street sale customer but you wish to show the customer's name in the sale and while printing the sale.
Take a look at the below screenshot to get a better understanding of how to add a customer name in the ‘Walk-In’ sale:
Please note, that adding a customer, as shown above, will not create a new customer with that profile. If you wish to create a new customer then please refer to this support article link.