BEx Broadcaster exception in GET_DATA_PROVIDER while START_BROADCASTER

Question

Hi All,
I am very new to SAP and first time using BEx 3.5 Web Application Designer (WAD). I have no background about how they communicate with each other and also how ABAP programs are related to Web Items. Need some help.
In my project, the requirement is to call broadcaster in directly new wizard by clicking on one button. (The new wizard is same as the one which we can see after clicking on 'create new settings with wizard' option of broadcaster template)
I am using following command URL:-
<A href="<SAP_BW_URL CMD='START_BROADCASTER' SOURCE_TEMPLATE='0BROADCASTING_TEMPLATE' SOURCE_DATA_PROVIDER='DP' START_WIZARD='X' DISTRIBUTION_TYPE='MAIL' >"   target=_Blank>
I am getting following error:-
Exception condition "UNKNOWN" raised.
The termination type was: RABAX_STATE
The ABAP call stack was:
Method: GET_DATA_PROVIDER of program CL_RSR_WWW_PAGE===============CP
Method: SET_ITEM of program CL_RSRD_WWW_ITEM_BROADCASTER==CP
Method: INIT of program CL_RSR_WWW_ITEM===============CP
Method: CREATE of program CL_RSR_WWW_ITEM===============CP
Method: SET_ITEM of program CL_RSR_WWW_PAGE===============CP
Method: SET_TEMPLATE_ITEMS of program CL_RSR_WWW_ITEM_TEMPLATE======CP
Method: SET_ITEM of program CL_RSR_WWW_ITEM_TEMPLATE======CP
Method: INIT of program CL_RSR_WWW_ITEM===============CP
Method: CREATE of program CL_RSR_WWW_ITEM===============CP
Method: SET_TEMPLATE of program CL_RSR_WWW_PAGE===============CP
Termination occurred in the ABAP program "CL_RSR_WWW_PAGE===============CP" -
  in "GET_DATA_PROVIDER".
Any suggestions why do I get this? Also, is there any document which will guide me about information broadcaster in detail like what are the templates/abap classes associated with it, what is the general flow of process etc.
Also, We want the technical name should be auto generated while creating new settings. How do we achieve it? And, how do we populate email Id of the current user in email field? We want to use distribution type=MAIL.
Experts, please see if you can help me in any of this.
Thanks,

Answer 1

Is Dealer a licensed user in BI system?If it is Make Dealer as Authorization relevant and add role with authorization object with dealer specific values.In Broadcaster u have option user-specific which will send only authorized value to delaer e-mail,here one broadcaster setting automates all the active dealers in system.If Dealer is not authorization relevant create 10 queries each query restricted to that delaer value and create 10 broadcaster settings.But this is last option if Dealer is not licensed in the system again this needs lot of effort and in terms of maintenance it gets worse.