In the Aha! we have Features that reference a parent Epic in another workspace. In Rally we have portfolio items that are children of a Capability in another project. This cross workspace/project relationship is supported in Aha! and Rally, but the integration does not current support maintaining the parent-child linkage.
It's not feasible to manually link the parents to their children in each system as it causes too much potential for error.
This would help us with our Azure dev ops integration.