Error while triggering BW process chain via web service call.

Hi,

I am trying to load IDM data to BW and i am experiencing below error. I checked and tested the web services in SICF and everything seems ok.

I can see data updating in PSA of 0IDM_ENTRY_ATTR data source so i think connections are also ok.

What could be the problem here?

VDS LOG;

Time:Tue Nov 24 13:53:03 CET 2015  Level:Error  Thread:Thread[878,3,LDAP Sessions:main_listener_389]

Logger:/Applications/none

Message: 

Error while triggering BW process chain via web service call. Used URL: http://xx.xxx.x.xx:8000/sap/bc/srt/rfc/sap/rs_bct_idm_chain_start/100/rs_bct_idm_chain_start/default
Exception:

 {0}#1#AxisFault
faultCode: {http://xml.apache.org/axis/}HTTP
faultSubcode:
faultString: (500)SRT
faultActor:
faultNode:
faultDetail:
{}:return code: 500
{http://xml.apache.org/axis/}HttpErrorCode:500 (500)SRT
at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:744)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:144)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at com.sap.idm.vds.wsclient.bw.procchain.BindingStub.idmBctChainStart(BindingStub.java:199)
at BWConnector.startChain(BWConnector.java:832)
at BWConnector.add(BWConnector.java:1217)
at com.sap.idm.vds.operations.MVDCommonAMDOperation.CarryOutMVDNodeOperation(MVDCommonAMDOperation.java:552)
at com.sap.idm.vds.operations.MVDAddOperation.CarryOutMVDAdd(MVDAddOperation.java:240)
at com.sap.idm.vds.operations.AddOperation.mxperform(AddOperation.java:105)
at com.sap.idm.vds.Engine.answerRequest(Engine.java:330)
at com.sap.idm.vds.protocols.ldap.MxLdapSession.run(MxLdapSession.java:193)