Invoke a SOAP API written in Salesforce using Axis

I had to consume an API written by someone else in Salesforce. I got the WSDL and the EndPoint.

Essentially what I had to do is to replace existing code I wrote a year ago to perform User Provisioning in Salesforce and rely on this API to perform that logic.

Now the interesting part is how to write my client, the obvious answer was to use WSDL2Java (Axis), because I don't want to write much code. And this is my final code: public void executeAccountUserProvisioningOnSalesforce(){ log.debug("Execute Account, Contact and User Provisioning (using single API on Salesforce) for "+this.kaptestRegistrationFields.getEmail()); com.sforce.soap.schemas._class.SSOprovisioningFunctionCall.Details details = null; this.login(); //Invoke Login //Create a sessionHeader object and set its sessioId property to sessionId SessionHeader sessionHeader = new SessionHeader(); sessionHeader.setSessionId(this.connection.getSessionHeader().getSessionId()); SSOprovisioningFunctionCallService service = new SSOprovisioningFunctionCallServiceLocator(); details = this.transformKaptestRegistrationFields(this.kaptestRegistrationFields); try { SSOprovisioningFunctionCallPortType port = service.getSSOprovisioningFunctionCall(new URL(provisioningEndPoint));//Use the service to get a stub which implements the SDI log.debug("Invoking "+provisioningEndPoint); ((Stub)port).setHeader("SessionHeader", "SessionHeader", sessionHeader); port.executeAccountUserProvisioning(details);//Invokes API } catch (Exception ex) { log.error("Error while invoking "+provisioningEndPoint+" for "+this.kaptestRegistrationFields.getEmail(),ex); } log.debug("Provisioning call to Salesforce completed for "+this.kaptestRegistrationFields.getEmail()); } .... private Boolean login() { Boolean success = false; try { ConnectorConfig config = new ConnectorConfig(); config.setUsername(username); config.setPassword(password); log.debug("AuthEndPoint: " + authEndPoint); config.setAuthEndpoint(authEndPoint); connection = new EnterpriseConnection(config); // Set the SOAP header to roll back the create unless // all contacts are successfully created. connection.setAllOrNoneHeader(true); printUserInfo(config); success = true; } catch (ConnectionException ce) { log.error("Error while executing login",ce); }catch (Exception ex) { log.error("Other Error occurred while executing login",ex); } return success; } This is a simple Cooking recipe with the exception of these lines: this.login(); //Invoke Login ... //Create a sessionHeader object and set its sessioId property to sessionId SessionHeader sessionHeader = new SessionHeader(); sessionHeader.setSessionId(this.connection.getSessionHeader().getSessionId()); ... ((Stub)port).setHeader("SessionHeader", "SessionHeader", sessionHeader); Things to keep in mind (otherwise you'll get "INVALID_SESSION_ID: Invalid Session ID found in SessionHeader: Illegal Session"):

1. Open a session in Salesforce (that's how get permission to invoke the API)
2. Populate SessionHeader object (with Salesforce sessionId)
3. Set the Header to your Port before making your call