Business has multiple steps in purchase requisition approval process with multiple conditional approvals taken by similar set of approvers. In such case sub-workflow can be used in PR header workflow. This sub workflow can be called at different conditions before the final approval by management. But currently when sub-workflow is approved either remaining steps in parent workflow are not processed or the status of PR is changed to approved while parent workflow is still not completed. This by pass the approval process and makes use an maintenance of workflow a difficult task and often lead to subsequent issues in performance.