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twenty/packages/twenty-docs/user-guide/data-model/how-tos/create-relation-fields.mdx
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BOHEUS e5ac9f5b8b Docs update (#23429)
Follow-up based on comments from
https://github.com/twentyhq/twenty/pull/23266

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Co-authored-by: Félix Malfait <felix@twenty.com>
Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>
2026-07-28 16:37:49 +00:00

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---
title: Create Relation Fields
description: Step-by-step guide to connecting objects with relation fields.
---
Relation fields connect records from different objects—for example, linking People to Companies.
<Note>
**Relation names cannot be changed after creation** (they affect the API). Plan your names carefully.
</Note>
## Before You Start
Decide:
- Which objects are you connecting? (e.g., People → Companies)
- Which is the "one" side? (e.g., Company)
- Which is the "many" side? (e.g., People — many people work at one company)
- What should the field be named on each side?
See [Relation Fields](/user-guide/data-model/capabilities/relation-fields) for relation types explained.
## Steps
1. Go to **Settings → Data Model**
2. Select the object where you want the relation (typically the "many" side)
3. Click **+ New Field**
4. Select **Relation** as the field type
5. Choose the **target object**
6. Select **One-to-Many** or **Many-to-One**
7. Enter field names for **both sides** of the relation
8. Click **Save**
## Example: People → Companies
- Go to **Settings → Data Model → People**
- Add a Relation field
- Target: **Companies**
- Type: **Many-to-One**
- Field on People: **Company**
- Field on Companies: **Employees**
Now each Person can be linked to a Company, and each Company shows its People.
## Deactivating a Relation
1. Go to **Settings → Data Model → object of your choice**
2. Find the relation field and click it
3. Click **Deactivate** button
Links are preserved but hidden. Reactivate to restore.
<Note>
**Deactivating a relation doesn't delete records.** Only the link between them is removed.
</Note>
## Deleting a Relation
1. Go to **Settings → Data Model → object of your choice**
2. Find the relation field and click it
3. Click **Delete** button
<Note>
Applies only to custom relations. Standard relations can only be deactivated.
</Note>
## Related
- [Relation Fields](/user-guide/data-model/capabilities/relation-fields) — types and limitations
- [How to Import Relations](/user-guide/data-migration/how-tos/import-relations-between-objects-via-csv) — bulk import linked records