route_policy seems to be mandatory for L3VPN ODN policy: Creation of L3VPN ODN policy with route_policy "route_in" fails as the policy is not existing already.Same payload worked fine in NSO 6.0 version and didn't require route-policy as mandatory policy to be pre-existing.
 Please ignore this issue and close it. The payload was of type L2VPN and works as expected once pre-requisite route_policy was added.