CPET_ERP_DOCUMENT_COM 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 in ERP: Communication Structure with Document 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_CPET_ERP_DOCUMENT_COM TYPE CPET_ERP_DOCUMENT_COM.
The CPET_ERP_DOCUMENT_COM table consists of various fields, each holding specific information or linking keys about CPE in ERP: Communication Structure with Document Fields data available in SAP. These include BSTYP (Purchasing Document Category), EKORG (Purchasing Organization), VBTYP (SD document category), VKORG (Sales Organization)... 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. .