Hello Rahul,
Thanks for the reply. Even though I used custom workflow, I am using the standard tasks, which were already maintained in SWFVISU. For second level approval also I copied the standard workflow TS12300097 and attached the custom rule. In addition, for first level approver the link is already showing in Manager's worklist for approval in MSS.
The only problem is, in case dual relationship the workflow is triggering to second approver in SAP (SBWP) but it is not reflecting in MSS.
Please suggest,