COMT_CUPRT 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 "Part_Of Entries in a Configuration" 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_COMT_CUPRT TYPE COMT_CUPRT.
The COMT_CUPRT table consists of various fields, each holding specific information or linking keys about Part_Of Entries in a Configuration data available in SAP. These include CONFIG_ID (External Configuration ID (Temporary)), PARENT_ID (Instance Number in Configuration), INST_ID (Instance Number in Configuration), PART_OF_NO (Part_of Item Number)... 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. .