itsp/SAPjulep/MaxExFunctions is a SAP Parameter attribute which is used to control SAP Gui for HTML, maximum external functions 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 specifies the maximum number of external functions that
can be loaded by sapjulep.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.