ECC-- SAP PI-- Successfactor Integration: Invalid SFAPI session

Question

Hello Experts,
   I am working on  EmployeeData Synchronization interface the content of which is predelivered from SAP.
I configured the interface and while testing
as first step I was able to retrieve the session ID from Successfactor,
but using the session ID retrieved from Successfactor cloud application when I am trying to upsert data in the second step  I am getting an error "Invalid SFAPI session".
How can I overcome this error?
I have done my research on the SDN and went through the blogs but for not much use.
I am sure about the content and the version being used by me as the correct one.
Has anybody seen this error and if yes how did you overcome the same?
Please let me know.
One point that I have to make is that since I was able to retrieve the session ID I did not install the certificates from Successfactors.
Is installing the certificates mandatory and if yes which step is this being referred?
Any help is really appreciated.
Anu Patyath

Answer 1

First of all, you should get it running with SOAP UI:
Please make sure, you got those steps right behind each other:
login
upsert
logout
The important step is to set "Main HTTP session":
You can use the payloads for login, upsert and logout as they are generated by SOAP UI when importing the WSDL.
e.g. upsert:
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:urn="urn:sfobject.sfapi.successfactors.com">
   <soap:Header/>
   <soap:Body>
      <urn:upsert>
       <urn:type>User</urn:type>
       <!--1 or more repetitions:-->
       <urn:sfobject>
       <urn:upsert>
       <urn:type>User</urn:type>
       <!--1 or more repetitions:-->
       <urn:sfobject>
            <urn:type>User</urn:type>
            <urn:type>User</urn:type>
            <urn:status>active</urn:status>
            <urn:externalId>testuser</urn:externalId>
            <urn:username>testuser</urn:username>
       </urn:sfobject>
     <urn:processingParam>
          <urn:name>sendWelcomeMail</urn:name>
          <urn:value>true</urn:value>
     </urn:processingParam>
     </urn:upsert>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>