问题 When a program is running in SAP ECC, the "system stack" stores all global variable irrespective of what modules/programs are called in that single session. When it's calling RFC-enabled Function Modules (FM), a new system stack is created in the called system and only the export parameters defined in the called FM can be retrieved in ECC when the called FM has finished. Is there a way to access another system stack's global variables in ABAP? For example, in my case: The FM BAPI_MATERIAL