Get Accept & Reject Buttons only on click of work item in sap inbox

Question

Hi,
ALL
I have a issue.
I have created a form in module pool which has a certain set of feilds. I have placed two buttons in the form namely " Submit " & Update. When ever the submit button is clicked in the form the form which is an attachment goes to the respective approvers for approval.
Issue : I have not placed any Accept or Reject Buttons in the form, I want these buttons to get displayed when the form is displayed in the SAP inbox of the user.
I am not aware of the process, that how the Accept & Reject buttons appear when the form is used for approvals in the workflow.
Can any one suggest me the process, that how do i use these buttons while displaying when the work item is clicked in the users inbox but not when the form is intially filled.
  - The approval or Reject buttons should not get displayed when the user is initially filling up the form.
-  The Approval or Reject Buttons should be displayed when the work item is clicked in the sap inbox of the user, instead of update & Submit.
On click of the work item - the accept & Reject buttons should be displayed but not the Update & Submit and this should be displayed only when the work item is clicked.
Kindly suggest me the way how to get that ..if possible some peice of  code would also be good.
Expecting an earlier reply !
shankar

Answer 1

Hi Shanky,
You can create two module pool programs for requirement.
One is for trigger the workflow and other one is to get the approval.
For the approval, create a dialog method and call the screen using call transaction.
So at run time when the user clicks the work item it will display the Approver screen. under Approve or Reject button you have to call the function module, SAP_WAPI_COMPLETE_WORKITEM to complete the work item.
Thanks,
Viji.