RESLEVEL and IMS connections

By default, when an API-resource security check is made for an IMS connection, two user IDs are checked to see if access is allowed to the resource.

The first user ID checked is that of the address space of the IMS region. This is taken from either the USER field from the job card or the user ID assigned to the region from the z/OS STARTED class or the started procedures table (SPT).

The second user ID checked is associated with the work being done in the dependent region. It is determined according to the type of the dependent region as shown in Table 58.

The setting of WebSphere MQ RESLEVEL profiles cannot alter the user ID under which IMS transactions are scheduled from the IBM-supplied MQ-IMS trigger monitor program CSQQTRMN. This user ID is the PSBNAME of that trigger monitor, which by default is CSQQTRMN.