VALID_PRPS 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 "Selection of PRPS Fields Necessary for Check" 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_VALID_PRPS TYPE VALID_PRPS.
The VALID_PRPS table consists of various fields, each holding specific information or linking keys about Selection of PRPS Fields Necessary for Check data available in SAP. These include PBUKR (Company code for WBS element), POST1 (PS: Short description (1st text line)), PLAKZ (Indicator: Planning element), PWPOS (WBS element currency)... 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. .