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1. Log in to APIM management console (https://<Server Host>:9443/carbon) and select Browse under Resources.
   

2. Go to the /_system/governance/apimgt/applicationdata/workflow-extensions.xml resource, disable the Simple Workflow Executor and enable WS Workflow Executor. Also specify the service endpoint where the workflow engine is hosted and the credentials required to access the said service via basic authentication (i.e., username/password based authentication).
   

   Code Block
   language html/xml
   <WorkFlowExtensions> ... <ApplicationCreation executor="org.wso2.carbon.apimgt.impl.workflow.ApplicationCreationWSWorkflowExecutor"> <Property name="serviceEndpoint">http://localhost:9765/services/ApplicationApprovalWorkFlowProcess/</Property> <Property name="username">admin</Property> <Property name="password">admin</Property> <Property name="callbackURL">https://localhost:8243/services/WorkflowCallbackService</Property> </ApplicationCreation> ...  </WorkFlowExtensions>

   Tip
   Note that all workflow process services of the BPS run on port 9765 because you changed its default port (9763) with an offset of 2.

   The application creation WS Workflow Executor is now engaged.

3. Go to the API Store Web interface, open My Applications page and create a new application.
   It invokes the application creation process and creates a Human Task instance that holds the execution of the BPEL process until some action is performed on it.    

4. Note the message that appears if the BPEL is invoked correctly, saying that the request is successfully submitted. 

5. Log in to the Admin Dashboard (https://localhost:9443/admin-dashboard), list all the tasks for application creation and approve the task. It resumes the BPEL process and completes the application creation.
   

6. Go back to the My Applications page on the API Store and see the created application. 

   Whenever a user tries to create an application in the API Store, a request is sent to the workflow endpoint. Given below is a sample:

   Code Block
   language html/xml
   <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wor="http://workflow.subscription.apimgt.carbon.wso2.org"> <soapenv:Header /> <soapenv:Body> <wor:createApplication xmlns:wor="http://workflow.application.apimgt.carbon.wso2.org"> <wor:applicationName>application1</wor:applicationName> <wor:applicationTier>Gold</wor:applicationTier> <wor:applicationCallbackUrl>http://webapp/url</wor:applicationCallbackUrl> <wor:applicationDescription>Application 1</wor:applicationDescription> <wor:tenantDomain>wso2.com</wor:tenantDomain> <wor:userName>user1</wor:userName> <wor:workflowExternalRef>c0aad878-278c-4439-8d7e-712ee71d3f1c</wor:workflowExternalRef> <wor:callBackURL>https://localhost:8243/services/WorkflowCallbackService</wor:callBackURL> </wor:createApplication> </soapenv:Body> </soapenv:Envelope>

   Elements of the above configuration are described below:

   Element	Description
   applicationName	Name of the application the user creates.
   applicationTier	Throttling tier of the application.
   applicationCallbackUrl	When the OAuth2 Authorization Code grant type is applied, this is the endpoint on which the callback needs to happen after the user is authenticated. This is an attribute of the actual application registered on the API Store.
   applicationDescription	Description of the application
   tenantDomain	Tenant domain associated with the application (domain of the user creating the application).
   userName	username of the user creating the application.
   workflowExternalRef	The unique reference against which a workflow is tracked. This needs to be sent back from the workflow engine to the API Manager at the time of workflow completion.
   callBackURL	At the time of workflow completion, the workflow-completion request is sent to this URL by the workflow engine. This property is configured in the <callBackURL> <callBackURL> element in the api-manager.xml file.