wdisp/group_info_location is a SAP Parameter attribute which is used to control Location from where logon group information of AS ABAP is retrieved 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 .
Specifies the location from which the SAP Web Dispatcher obtains
information about the server groups to which it can distribute the Web
requests. The details are indicated in a URL (absolute or relative).
Usually the SAP Web Dispatcher gets its group information from an
application server (transaction SMLG). In this case you can specify the
ICF service where the groups are defined (by default,
If there is no message server or application server with ICF (ABAP)
available, you can store this information in a file. In this case you
can use this parameter to specify the file path by setting the parameter
See SAP Parameter Documentation for full SAP documentation for this profile parameter.