EXPD_ACT_AUTH 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 "Authorizations in Expediting" 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_EXPD_ACT_AUTH TYPE EXPD_ACT_AUTH.
The EXPD_ACT_AUTH table consists of various fields, each holding specific information or linking keys about Authorizations in Expediting data available in SAP. These include CHANGE (Authorization Exists), DISPLAY (Authorization Exists), DELETE (Authorization Exists)... 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. .