PFMSG_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 "Period End Partner: Message handler information (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_PFMSG_FIELDS TYPE PFMSG_FIELDS.
The PFMSG_FIELDS table consists of various fields, each holding specific information or linking keys about Period End Partner: Message handler information (fields) data available in SAP. These include OBJECT_ID (Object ID for Processing Within PPC Error Analysis), NR (Error Management Number)... 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. .