Hi all,
We recently published a detailed guide showing how to resolve this issue. The guide shows how to sync updates between high level board items and several connected child board items, without the need to duplicate your items across multiple boards.
So when an update is posted on the high level board item, it is propagated down to all the connected child board items updates and when an update is posted on the child board, it is sent to the high level board connected items’ updates.
That way, the high level board item aggregates the updates from the child board items and the child board items can view updates from the high level board items.
Here’s the link to the guide: https://community.monday.com/t/seamlessly-sync-updates-conversations-across-connected-monday-com-boards/117493
And here’s a demo of the solution: