CMP_DYNPRO_ENTRY 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 "Action and Input 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_CMP_DYNPRO_ENTRY TYPE CMP_DYNPRO_ENTRY.
The CMP_DYNPRO_ENTRY table consists of various fields, each holding specific information or linking keys about Action and Input Fields data available in SAP. These include VBELN_VF (Billing Document), POSNR_VF (Billing item), VBELN (Delivery), EXTNR_VF (Complaints Processing: External Number (Empties Document))... 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. .