You have already got the answer by others replies. Just to add a bit. The only difference is in the 'Type' field which states what type it is. Apart from that there is no other difference technically, even the default workflow is the same.
Types of SLAS: Based on who is making the agreement based on that we will divide these three. 1. Sla is an agreement between client and service provider. 2. OLA(Operational Level Agreement) is an agreement between teams and service provider. Service provider is a company 3. UC(Underpinning Contract)is an agreement between vendor and service provider.
