When duplicating a board in monday.com, the board ID consistently changes, which is expected. However, I’ve recently observed that column IDs do not always change, even when the board is duplicated within the same workspace.
Historically, duplicating a board (even within the same workspace) resulted in new column IDs, and much of the community and integration guidance has been based on that assumption. In my recent tests using the UI-based “Duplicate board” option within the same workspace, the board ID changed but the column IDs remained the same.
I couldn’t find any official documentation, Help Center article, or community post that explicitly explains this behavior or announces a change. Most existing community discussions and API guidance still assume column IDs may change and recommend defensive design (re-fetching columns, mapping by title/type, avoiding hard-coded IDs).
Because this behavior appears undocumented and not explicitly guaranteed, it’s likely best practice still remains unchanged: treat duplicated boards as potentially having different column IDs, even if they sometimes remain the same.
Sharing this here for awareness in case others have run into the same observation, especially those working with APIs, automations, or integrations.