Usage and use case of TM_XEGRP in authorization object T_TOR_EXE

Hi TM experts,

I would like to ask about TM_XEGRP in TM authorization object T_TOR_EXE.

- What kind of code can be used for this field? (e.g. sales organization, sales group)
- Is it set as lower organization of TM_XEGRP (planning and execution organization) in PPOME setup? (org.data tab, org unit function = 13 planning and execution unit, org. unit role = 3 Group) If wrong, how is it setup and used?

Best regards,
Midori