TL;DR: When you activate a sync, a HubSpot Link column is added to your board. Together with the app, it stores the link between each monday.com item and its connected HubSpot record. Don't delete or edit it. The integration needs it to sync.
Before you start
The HubSpot Link column is added automatically when you activate a sync. No manual setup needed
This page explains what the column does and what to do if something goes wrong. For setup, see Setting up a Sync
What is the HubSpot Link column
When you activate a sync, a column called HubSpot Link (column type: Link) is automatically added to your board. It holds the link between each monday.com item and its HubSpot record.
Item-to-record links are stored in two places: in the app itself and in this column on your board.
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Why it matters
Links items to HubSpot records — each cell references the specific Contact, Company, Deal, Ticket or Task record in HubSpot
Prevents duplicates — the sync uses these links to know which items are already connected, so it doesn't create duplicates
Enables two-way sync — without the link, the app wouldn't know which HubSpot record to update when you change an item in monday.com
Don't delete the column or manually edit its values while a sync is active. If the column is deleted or broken, your syncs can't create or update records. The column is managed automatically by the app. Editing values can cause sync errors or duplicate records.
If the column is deleted
If the HubSpot Link column is accidentally deleted, bring it back instead of rebuilding the sync:
Undo right away. Click Undo on the message monday shows after the delete.
Or restore it from the Trash. Deleted columns go to your monday.com Trash. Find the HubSpot Link column there and restore it.
Don't rebuild the sync first. Restoring the column is the safest fix. Can't find it in the Trash? Contact us at hello@fantasymedia.io before you set up a new sync.
Can I hide it?
Yes. If you don't want the column visible on your board, you can collapse or hide it using monday.com's column visibility settings. Hiding the column does not affect the sync — the link remains active in the background.
Common gotchas
Don't delete the column — removing it can break the connection between your board items and HubSpot records
Don't manually edit values — the column is managed automatically by the app
Don't rename the column — renaming won't break the sync, but it may cause confusion when troubleshooting
Hiding or collapsing the column is safe — the sync keeps working