CHANGED_WBS_ST is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Structure to save the changed wbs elements." Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_CHANGED_WBS_ST TYPE CHANGED_WBS_ST.
The CHANGED_WBS_ST table consists of various fields, each holding specific information or linking keys about Structure to save the changed wbs elements. data available in SAP. These include POSID (Work Breakdown Structure Element (WBS Element)), CHANGED (Single-Character Indicator)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .