Service Catalog Approvals



In our current system contact records don't have manager value populated for any of our contacts, so I need to have a svc.options field say "Ist Level Approver" and allowing the ServiceDesk person to select approvers when the submit the cart.


I see the svc.option values are only available on the fulfilment record (ocmq) but not available on the Interaction.


Can some help me how can I achieve this, I need to display a field to the ServiceDesk person to select a approver while adding cart item and the field value has to be copied to Interaction record or assign this to vars.$L_approval_role_user variable on the Approval Roles.