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The following scenario simulates a simple leave approval business process, in which an employee fills a form and submits the leave request to the manager and the manager approves or rejects it. 

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1. Right click on the connection arrow, which connects the Start Event and the End Event and click Delete.
2. Drag and drop a User Task to the diagram.
   
   
3. Hover your mouse pointer over the Start Event, and click on the arrow icon (i.e., the Create Connection option) and connect the Start Event to the User Task.
4. Hover your mouse pointer over the User Task, and click on the arrow icon (i.e., the Create Connection option) and connect the User Task to the End Event.
   
   
5. Click on the User Task, and change the value of the Name field to Review leave request in the General section of the Properties tab. 
    
   

6. Click on the User Task, click New in the Form section of the Properties tab and add the following field. 
   

   id	Name	Type	Readable	Writable	Required	Form Values
   vacationApproved	Do you approve this vacation request?	enum Tip For fields of type “enum” you can add form values that act as different options. You can provide two options as Approve and Reject for this field.	true	true	true	Id: true
   						Name: Approve
   						Id: false
   						Name: Reject

    
   

   
   

7. To add an assignee to the User Task, enter the value as manager for the Assignee field in the Main Config section of the Properties tab (of the User Task). 
   

   Tip
   This assumes that a single person (e.g., HR Manager) is responsible for approving or rejecting leave. If you want to allow a group of people (e.g., anyone in the HR Department) to approve/reject leave, you can enter the group role name (e.g., hrDepartment) as the value of the Candidate group field in the Main Config section of the  Properties  tab (of the User Task).

   

8. Press Ctrl+S to save Save all the artifacts , which that you created in WSO2 EI ToolingIntegration Studio.

The model is now complete as the necessary logic has been applied.

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1. Start the Business Process profile of WSO2 EI.

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   borderColor #542989 bgColor #ffffff borderWidth 1
   Localtabgroup Localtab title On MacOS/Linux/CentOS Open a terminal and execute the following command: Code Block wso2ei-6.4.0-business-process Localtab title On Windows Go to Start Menu -> Programs -> WSO2 -> Enterprise Integrator 6.4.0 Business Process. This will open a terminal and start the business process profile.

2. Log in to the BPMN-explorer at https://localhost:9445/bpmn-explorer using admin for both the username and password.
3. Click PROCESSES in the top menu, and click the Start option of the Leave Approval Process.
   

4. Initiate the process by filling the form and click Start.

   

   You view the following message.
   

5. Log out and log in again using manager/manager credentials. 

6. Click TASKS and then click MY TASKS. You view the Claimable Task, which was created by the process you started. 

   
   

7. Click on the Task, select Approve from the drop down list and click Complete Task.
   

   You view the Task being removed from the MY TASKS list. 

8. Click TASKS in the top menu, and then click COMPLETED TASKS. You view the Task you just completed being added to the COMPLETED TASKS list.

   

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