BAPI2088_NOTITEMI 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 "Notification Item" 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_BAPI2088_NOTITEMI TYPE BAPI2088_NOTITEMI.
The BAPI2088_NOTITEMI table consists of various fields, each holding specific information or linking keys about Notification Item data available in SAP. These include REFOBJECTKEY (Object key), ITEM_KEY (Item Number in Item Record), ITEM_SORT_NO (Sort Number for Item), DESCRIPT (Notification Item Short Text)... 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. .