> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sameitem.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How to Copy Subitems to Another Item or Board in monday.com

> How to copy subitems to another item or board in monday.com, why duplicating an item with subitems drifts out of sync, and what to do when the subitems must stay matched on both boards.

## 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](#when-copying-is-the-wrong-tool).

## Copy vs duplicate vs mirror — which one you actually want

| Method                           | What it does                                                                | Stays in sync?                                                                                |
| -------------------------------- | --------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- |
| **Duplicate item with subitems** | Creates an independent item on the same or another board, subitems included | No — [diverges immediately](/guides/duplicate-items-drift)                                    |
| **Copy / paste subitems**        | Adds a copy of the subitems under a different parent                        | No                                                                                            |
| **Move subitem to another item** | Relocates the subitem — it leaves the original parent                       | N/A — there is only one copy                                                                  |
| **Mirror column**                | Reflects a *column value* from another board                                | Not applicable — [mirrors can't carry subitems at all](/guides/mirror-subitems-across-boards) |
| **Same item on both boards**     | One item and one set of subitems, present on every board                    | Yes — nothing to reconcile                                                                    |

## 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:

1. Someone updates a subitem status on one board only.
2. Someone adds a subitem on one side that never appears on the other.
3. Both boards now show a confident, different answer — and no one can tell which is right.

Rebuilding the link with per-column automations means one rule per column, per direction, per board, and they echo each other. [Why duplicated items drift](/guides/duplicate-items-drift) covers the full mechanics.

## 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](https://monday.com/marketplace/10000363) the parent item lives on every board you share it to and its [subitems come with it](/features/subitems). Add or tick off a subitem anywhere and every board reflects it, because there is only one set.

1. Install [Same Item Multiple Boards](https://monday.com/marketplace/10000363) ([install guide](/installation)).
2. Share the parent item to the other board, [manually](/features/manual-sharing) or by [automation](/features/automations). Subitems follow.
3. Confirm subitem column names and types match on both boards, including case — the most common reason values don't carry ([column mapping](/features/column-mapping)).
4. Moving lots of existing items? Use [batch actions](/features/batch-actions).

## FAQ

### How do I copy subitems to another item in monday.com?

Select the subitems on the source item, copy, then paste onto the target item's subitems section. Subitem columns must match on both sides or values are lost. The pasted subitems are copies and will not track the originals.

### Does duplicating an item in monday.com include its subitems?

Yes — the duplicate dialog lets you include subitems. The copies are independent from the moment they are created.

### Can I copy subitems to a board that has no subitems set up?

The destination board needs a subitems structure first. Add a subitem to any item there once and monday creates the subitems board, then match your column names before copying.

### Why did my subitem column values disappear after copying?

Almost always a column name or type mismatch — matching is case-sensitive. Start with the [sync troubleshooting guide](/guides/board-sync-troubleshooting).

### I want a subitem to become a real item on another board

Different job, and it's supported: see [subitems across boards](/guides/sync-subitems-across-boards).

### What's the difference between this and mirroring subitems?

Mirroring doesn't apply to subitems at all — mirror columns reflect a column value, not a subitem structure. See [can you mirror subitems in monday.com](/guides/mirror-subitems-across-boards), or start from [how to make an item live on multiple boards](/guides/item-on-multiple-boards).