Budgeting is implemented for projects.

A hierarchical report on budget updates is a standard report type that provides an overview of adjustments on the budget for WBS elements within your project. A hierarchical report on budget updates displays the budget values and changes for each WBS element in a hierarchical structure. You can use various selection criteria and display options to customize the report according to your needs. You can also access detailed information on individual budget values or changes by choosing drilldown functions. Reference:https://help.sap.com/doc/0f069b2e08b748f1b480d4c8b46c3c49/100/en-US/6a7a9f0a6e421014e10000000a174cb4.html