The details are critical especially for service type listings. When a customer purchases a service online they are left with a voucher (a receipt) with the details of the purchase on that invoice.
These details are found in the “Listing Short Description” and this is where you need to detail the important aspects of your service (that are not covered in the title) such as “Valid on Wednesdays only” or “Expires March 15, 2018” etc.
Screen Shot where the Listing Short Description is on your listing editor page.
Screen Shot where the Listing Short Description is on your listing page that the customer see as they purchase.
Notice that of the 245 characters only the first 130 are visible.