rdisp/scheduler/prio_low/max_quota is a SAP Parameter attribute which is used to control Maximum quota of dialog work processes used for low prio requests (app information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
The kernel scheduler normally distributes incoming dialog requests in
accordance with their priority to all dialog work processes. H
igh-priority requests have priority.
In contrast to this arrangement, this parameter limits the maximum
number of dialog requests with low priority that can be processed at the
same time. Even if there are still free dialog work processes and there
are no requests with high priority, the system will never use more than
the number of dialog work processes specified by the parmaeter to
process requests with low priority.
The system assigns low priority to all RFC dialog requests that are
triggered by a background request.
The intention behind this parameter is to limit the maximum number of
simultaneously-processed dialog requests with low priority. This is to
ensure that there are always sufficient resources for dialog requests
with normal and high priority.
You cannot choose a value smaller than the effective value for
See SAP Parameter Documentation for full SAP documentation for this profile parameter.