PSGL_EXTSTRUCT_LEAD 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 "Extraction Structure for the Leading Ledger" 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_PSGL_EXTSTRUCT_LEAD TYPE PSGL_EXTSTRUCT_LEAD.
The PSGL_EXTSTRUCT_LEAD table consists of various fields, each holding specific information or linking keys about Extraction Structure for the Leading Ledger data available in SAP. These include ACTIV (FI-SL Business Transaction), RMVCT (Transaction Type), RTCUR (Currency Key), RUNIT (Base Unit of Measure)... 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. .