In SAP, Activity types are activities provided by a cost center. They are measured in units of time or quantity. Activity quantities are valued using a price. For e.g. Activity types are used to allocate machine cost from Machine cost center to the production orders. An activity input from a sender cost center signifies that a receiver (usually another cost center or a capital project) is drawing on the resources of the sender cost center
Find below download links for step by step guide and screenshots to learn creating activity types in SAP using transaction code KL01.