Thid function gives you the Proware memberid by relation is he/she has in intogolf.

parameters:

Important : This function can only be used when Intogolf is leading

Information: When the member can not be found the function returns -9.

Example: https://backend.prowaregolf.nl/api/getmemberidbyitgrelnr/key/<your authrisation code here>/itgrelnr/<Intogolf relation id>

result:

{
 "getmemberidbyitgrelnr":[
  {
   "lidnummer":"5"
  }
 ]
}