The group id list contains the group id corresponding to each UCB
in the input UCB list.
Figure 1. Output from Function Code 4 (Return Group ID)
Note: If the UCB is not in the EDT, the group id for that
particular entry remains zero.
Register 15 contains one of the following return codes:
- Code
- Meaning
- 0
- Processing is successful.
- 24
- The JESCT does not contain valid pointers.
- 28
- The required input is not specified or is not valid.
- 36
- An empty UCB list is being returned.