Vendors and their contacts are something we all rely on. Since the IT department often does not have its own application, it is hard to track all those contacts and account numbers etc. and make them available throughout the team.
You can add vendors and contact information in this rather simple kept module. Those vendor information can then be related to purchases, expenses and incidents. It is not used in the Software module, due to the fact that this is by default kept independent. It is as well not used for manufacturers for workstations, printers or server and other equipment. Feel free to change this behavior if you want to.