wdisp/HTTPS/max_pooled_con is a SAP Parameter attribute which is used to control Maximum number of Web Dispatcher HTTPS connections to a backend server 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 .
This parameter determines the maximum number of HTTPS connections in the
connection pool from the SAP Web Dispatcher to an SAP Web Application
Server. You should not normally change the default setting.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.