KPP1LF 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 "CO planning processor: logical screen formula table" 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_KPP1LF TYPE KPP1LF.
The KPP1LF table consists of various fields, each holding specific information or linking keys about CO planning processor: logical screen formula table data available in SAP. These include KEYRA (Key figure), LFDNR (Sequence Number), FLINE (Key figure formula line)... 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. .