BAPI_TS_TASK_TMPL 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 "BAPI CREATE/CHANGE: Task Fields in Template" 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_BAPI_TS_TASK_TMPL TYPE BAPI_TS_TASK_TMPL.
The BAPI_TS_TASK_TMPL table consists of various fields, each holding specific information or linking keys about BAPI CREATE/CHANGE: Task Fields in Template data available in SAP. These include TASK_NAME (Project Element Name), SORT_NUMBER (Sort Number), TASK_TYPE (Task Type), PROCESS (Process)... 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. .