Web service for SAP R/3 user authentication

Hi Experts,
We are searching for any standard web service/ Bapi to authenicate an SAP user from an external system which needs WSDL to check this . External system will be providing the SAP user ID and password and expects an acknowledgemnt that whether the user is authenticated or not .
Is there any webservice/Bapi available for this purpose? if not how we can achieve this?
Thanks in advance
Sanu

Hi,
I don't think there is any web service to just check authentication but the work around is simple :
Call any web service which just display some information (for example call STFC_CONNECTION function module as a web service).
As you need to authenticate to call the web service, send the user/password.
If you get the release information, the user/password is OK.
If you get HTTP 401 error, the user/password is KO.
Of course the user needs the authorisation to execute the STFC_CONNECTION function module.
Regards,
Olivier

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Hi,
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It generated me all the classes that I need for the BAPI.
It also generated me a Proxy class.
I want to create a service.
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2) create a methode in the service :
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Hi Marcin and everyone,
Thanks for the precious explanations.
I created a client and I have an exception.
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2) I created a DynPage.
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IMyBAPI4Service client = (IMyBAPI4Service) PortalRuntime.getRuntimeResources().getService(
IMyBAPI4Service.KEY);
IMyBAPI4Service securedClient = (IMyBAPI4Service) client.getSecurisedServiceConnection(                 request.getUser());
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if (securedClient.getURLEndPoint().getURL() == null) {
securedClient.setURLEndPoint(new URLEndpoint("http://<server>:<port>/irj/servlet/prt/soap/com.sap.portal.prt.soap.MyBAPI4Service?style=doc_lit"));
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importParams.setCompanycodeid("0500");
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Problem at execution: SOAP Fault Error (java.lang.NoClassDefFoundError) : java.lang.NoClassDefFoundError
Thanks Marcin....
Message was edited by: David Fryda

Business Service Issue for OSB 10.3.1 when call web service of SAP ECC 710

Hello,
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*<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">*
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<ContractInfo>string</ContractInfo>
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<soap-env:Header>
<n0:MessageID xmlns:n0="http://schemas.xmlsoap.org/ws/2004/08/addressing">
uuid:4cbe5b84-474c-9abe-e100-00000ad00164
</n0:MessageID>
<n1:Action soap-env:mustUnderstand="1" xmlns:n1="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope"/>
</soap-env:Header>
<soap-env:Body/>
</soap-env:Envelope>
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<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
*<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"></soap:Header>*
<soapenv:Body>
<urn:Zmmjf503 xmlns:urn="urn:sap-com:document:sap:soap:functions:mc-style">
<ContractInfo>string</ContractInfo>
</urn:Zmmjf503>
</soapenv:Body>
</soapenv:Envelope>
and i got the correct response :
<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/">
<soap-env:Header/>
<soap-env:Body>
<n0:Zmmjf503Response xmlns:n0="urn:sap-com:document:sap:soap:functions:mc-style">
<Recmsg><![CDATA[<?xml version="1.0" encoding="utf-8"?><DocumentResponse><STATE>0</STATE><HTBH></HTBH><MESSAGE></MESSAGE></DocumentResponse>]]></Recmsg>
</n0:Zmmjf503Response>
</soap-env:Body>
</soap-env:Envelope>
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*<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">*
*</soap:Header>*
VS
*<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"></soap:Header>*
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Regards
Wen

Thanks,Patrick,
i have already removed the Soap:header, and it worked as well. what's more , using header " <soapenv:Header/>" worked.
And i got these request messages via TCPMON, so it's exactly what were sent to SAP ECC710.
The HTTP request which cannot work:
POST /sap/bc/srt/rfc/sap/zmmjf_503/400/zmmjf_503_service/zmmjf_503_soapbinding HTTP/1.1
Content-Type: text/xml; charset=utf-8
Authorization: Basic enpoZmhlOnBhc3N3b3Jk
SOAPAction: ""
Transfer-Encoding: chunked
User-Agent: Java1.6.0_05
Host: 10.208.1.100:8000
Accept: text/html, image/gif, image/jpeg, */*; q=.2
Connection: Keep-Alive
017a
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
</soap:Header><soapenv:Body><urn:Zmmjf503 xmlns:urn="urn:sap-com:document:sap:soap:functions:mc-style">
<ContractInfo>string</ContractInfo>
</urn:Zmmjf503></soapenv:Body></soapenv:Envelope>
0000
THE HTTP request which can work:
POST /sap/bc/srt/rfc/sap/zmmjf_503/400/zmmjf_503_service/zmmjf_503_soapbinding HTTP/1.1
Content-Type: text/xml; charset=utf-8
Authorization: Basic enpoZmhlOnBhc3N3b3Jk
SOAPAction: ""
Transfer-Encoding: chunked
User-Agent: Java1.6.0_05
Host: 10.208.1.100:8000
Accept: text/html, image/gif, image/jpeg, */*; q=.2
Connection: Keep-Alive
016c
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"/><soapenv:Body><urn:Zmmjf503 xmlns:urn="urn:sap-com:document:sap:soap:functions:mc-style">
<ContractInfo>string</ContractInfo>
</urn:Zmmjf503></soapenv:Body></soapenv:Envelope>
0000
Thing is that if i just use
<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"></soap:Header>
to replace (which means i just simply remove the carriage return)
<soap:Header xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
</soap:Header>
in the header field of OSB Test console, it can work!!!
It's really a weird issue. and it bothers me so much ;)
any suggestions?
Regards
Wen

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1. What is web services?
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what are web services in SAP for interface peoplesoft

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Hello,
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Note
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HTTP 403 - Forbidden
Your SAP Internet Communication Framework Team
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I think I must clarify my question.
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METHOD zpi_ii_test_ws_3_in~test_ws_3_in.
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        l_gjahr      TYPE gjahr,
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        lwa_zpi_test TYPE zpi_test.
l_bukrs = input-mt_req-msg+0(4).
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lwa_zpi_test-gjahr = l_gjahr.
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ENDMETHOD.
I hope to have clarified my question.
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Error when consuming Web Service in SAP R/3 ECC 6.0

Hi to everyone.
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Hi.
I think I must clarify my question.
The Web Service is not called inside SAP R/3 but externally. For testing pourpose I actually use WS Navigator and XMLSpy.
The method inside ABAP Server Proxy which is exposed as a Web Server in SAP R/3 system is the following. Note that the Web Service is Asynchronous.
METHOD zpi_ii_test_ws_4_in~test_ws_4_in.
DATA: lwa_zpi_test TYPE zpi_test.
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I have created another Web Service in SAP R/3 which is Synchronous, and the error does not occurs. The following is the method inside ABAP Server Proxy which is exposed as a Web Service in SAP R/3 system.
METHOD zpi_ii_test_ws_3_in~test_ws_3_in.
DATA: l_bukrs      TYPE bukrs,
        l_belnr      TYPE belnr_d,
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      AND gjahr EQ l_gjahr.
IF l_belnr IS INITIAL.
    l_belnr = '4700000000'.
ELSE.
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ENDIF.
lwa_zpi_test-mandt = sy-mandt.
lwa_zpi_test-bukrs = l_bukrs.
lwa_zpi_test-belnr = l_belnr.
lwa_zpi_test-gjahr = l_gjahr.
INSERT zpi_test FROM lwa_zpi_test.
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output-mt_resp-msg = l_belnr.
ENDMETHOD.
I hope to have clarified my question.
Rafael Rojas.

Web service for SAP R/3 user authentication

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