Hi,
2LIS_03_BX data source not avliable in the LBWE and but it is avalible in RSA5 and after activating data soruce same data source will show in RSA6.
in RSA5 check the find opiton for globa seleciton -select SAP -> click on + symbol and go to find option give the data source name -> 2LIS_03_BX.
Thanks,
Phani.