EXP_INPUT_DATA 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 "Progress Tracking Data for Order" 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_EXP_INPUT_DATA TYPE EXP_INPUT_DATA.
The EXP_INPUT_DATA table consists of various fields, each holding specific information or linking keys about Progress Tracking Data for Order data available in SAP. These include EBELP (Item Number of Purchasing Document), ETENR (Delivery Schedule Line Counter), ERNAM (Name of Person who Created the Object), LIFNR (Account Number of Vendor or Creditor)... 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. .