I have face a problem using fixed asset use in rental process.
I have created one fixed asset “Truck”. and after that i use as rental services. so, I Put Truck code in sales invoice and on submit, that time throw a error " You must select an Asset for Item Truck". And, after that i select a asset in asset field. so, sales invoice is submitted without and error, but after that Change the status “Submitted” to “Sold” in Asset Doctype. and that’s reason next time, i can not use “Truck” item in any type of sales transaction.
You mean like this, 1st Create a “Truck” Service item and 2nd Create a “Truck” Fixed asset item. and after that you say that is working. But, I need only create one Item “Truck” and is consider as both service item and fixed asset item.