CPEC_CONVERSION_MIGR 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 "CPE - Conversion Rule - Migration Structure" 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_CPEC_CONVERSION_MIGR TYPE CPEC_CONVERSION_MIGR.
The CPEC_CONVERSION_MIGR table consists of various fields, each holding specific information or linking keys about CPE - Conversion Rule - Migration Structure data available in SAP. These include LOGSYS (Logical system), RECORDNAME (CPE - Record Identifier for Migration), CONVERSIONRULE (CPE - Conversion Rule), VALIDTO (CPE - 'Valid To' Time Stamp of Commodity Pricing Object)... 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. .