User support in many companies runs on "whatever works" — email, phone, chat, in person. The result: requests get forgotten, some get handled twice, and you never really find out how much work the IT department is actually getting through.
Without request records, you also lose the arguments that matter: you don't know which problems keep recurring, where the bottleneck is, or whether you're meeting agreed deadlines. The quality of support then hinges entirely on whether one particular technician happens to remember.
A service desk removes that uncertainty. Every request gets its own record, status, owner and deadline. The user sees something is happening, the technician knows what to do, and management finally has numbers.
