How to create a bi-directional link between DNG and DOORS Classic??
One answer
Did you search the documentation? You need to integrate DOORS Next with DOORS/DWA - see the docs e.g. https://www.ibm.com/docs/en/engineering-lifecycle-management-suite/doors-next/7.2.0?topic=integrating-doors-next-doors - including the steps at the bottom which are about enabling linking.