GMASPPROG_UPD 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 "Update Structure for Allowed Sponsor Programs" 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_GMASPPROG_UPD TYPE GMASPPROG_UPD.
The GMASPPROG_UPD table consists of various fields, each holding specific information or linking keys about Update Structure for Allowed Sponsor Programs data available in SAP. These include CLIENT (Client), PARTNER (Business Partner Number), SPONSORED_PROG (Sponsored Program), FROM_DATE (Valid from)... 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. .