CONCURCH 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 "Condtions: Currency change" 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_CONCURCH TYPE CONCURCH.
The CONCURCH table consists of various fields, each holding specific information or linking keys about Condtions: Currency change data available in SAP. These include S_KONWS (Switch to show whether the scale needs changing), S_KWAEH (Switches), S_KONWA (Switch for changing the currency of the condition unit), S_SUPPL (Switch for changing the additional conditions)... 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. .