FMD1_F15_FIELDS 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 "F15 Interface - Data Fields" 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_FMD1_F15_FIELDS TYPE FMD1_F15_FIELDS.
The FMD1_F15_FIELDS table consists of various fields, each holding specific information or linking keys about F15 Interface - Data Fields data available in SAP. These include F15_HAUSHALTSSTELLE (Commitment Item F15 Interface), F15_OBJEKTNUMMER (), F15_KASSENZEICHEN (Cash Reference Number F15 Interface), F15_DIENSTSTELLE (Office Name F15 Interface)... 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. .