Activity based costing (ABC) is a special costing model that identifies activities in an organization for which managing cost is required.
"Activity" is one of the dimensions which can be set up for a given general ledger configuration.
ABC Activity window allows to create as many activities as require per each organization.
As shown in the screen above it is possible to define summary activities which support a hierarchical structure or activities within an organization.
Full list of ABC Activity window fields and their descriptions is available in the ABC Activity Screen Reference.