UPC_YS_API_PACKAGE 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 "Planning Package" 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_UPC_YS_API_PACKAGE TYPE UPC_YS_API_PACKAGE.
The UPC_YS_API_PACKAGE table consists of various fields, each holding specific information or linking keys about Planning Package data available in SAP. These include PLEVEL (Planning level), PACKAGE (Planning Package), TEXT (Name of Planning Package)... 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. .