GRRM_S_FACT_ACT_HEADER 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 "Activity Header Data for Activity Fact Report" 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_GRRM_S_FACT_ACT_HEADER TYPE GRRM_S_FACT_ACT_HEADER.
The GRRM_S_FACT_ACT_HEADER table consists of various fields, each holding specific information or linking keys about Activity Header Data for Activity Fact Report data available in SAP. These include ACTIVITY_CATEGORY (Title/Short Name), ACTIVITY_VALID_FROM (Date), ACTIVITY_ID (Object ID), REPORT_TITLE (String)... 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. .