The short answer
monday.com can copy subitems — duplicating an item brings its subitems along, and you can paste or move subitems between parents. What it cannot do is keep those subitems matched afterwards. The moment the copy exists, the two sets are independent: edit one and the other is stale. So the right method depends entirely on one question: is this a one-time copy, or do both sides need to stay current?- One-time copy (a template, a starting point) → use the native options below.
- Both sides must stay current → copying is the wrong tool. You need the same item on both boards, with one set of subitems. See what actually stays in sync.
Copy vs duplicate vs mirror — which one you actually want
How to copy subitems natively
Duplicate an item with its subitems
When you duplicate an item, monday asks what to bring along — choose the option that includes subitems. The new item carries a copy of every subitem and its column values. Use this for templates and repeatable checklists, where you want each copy to go its own way. To do it across boards, duplicate first and then move the new item to the target board. Column names and types need to match on the destination or values are dropped in the move.Copy subitems to a different parent item
Select the subitems on the source item, copy them, then paste onto the target item’s subitems area. This is the fastest route for a handful of subitems and works across boards as long as the subitem columns line up.Move a subitem instead of copying it
If the subitem belongs somewhere else rather than in two places, move it to the other parent. There is still only one subitem, so there is nothing to keep in sync — this is often the honest answer when people ask how to “copy” a subitem.Automate it
Recipes that create or duplicate an item on another board can be triggered by a status change or item creation. Treat the result as a snapshot: the automation fires once, and from then on the two items are unrelated records.Why duplicated subitems drift
A duplicate has no link back to the original. There is no stored relationship between the two item IDs, so nothing knows they are meant to represent the same work. Three things go wrong in order:- Someone updates a subitem status on one board only.
- Someone adds a subitem on one side that never appears on the other.
- Both boards now show a confident, different answer — and no one can tell which is right.
When copying is the wrong tool
If the same work is genuinely tracked by two teams, you do not want two sets of subitems — you want one, visible in both places. With Same Item Multiple Boards the parent item lives on every board you share it to and its subitems come with it. Add or tick off a subitem anywhere and every board reflects it, because there is only one set.- Install Same Item Multiple Boards (install guide).
- Share the parent item to the other board, manually or by automation. Subitems follow.
- Confirm subitem column names and types match on both boards, including case — the most common reason values don’t carry (column mapping).
- Moving lots of existing items? Use batch actions.