rdisp/autoccmstime is a SAP Parameter attribute which is used to control Period for running CCMS activities. 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 .
CCMS activities are performed for each server periodically. This
parameter defines the frequency of these actions. The parameter value 0
deactivates the CCMS activities.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.