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

# Duplicates and siblings

> Review flagged and auto-detected duplicate student records with address comparison.

Data Leads use **Students → Duplicates** (`/admin/duplicates`) to resolve potential duplicate records. Each pair shows **home addresses** and how they compare.

## Who can access

**Admin** and **Data Lead** only.

## How intake surfaces matches

During **NEW** registration, Intake shows possible matches with match scores. Staff can:

* Stop if it is the same person
* Check **This is a different person** to flag siblings for Data Lead review
* Use **Copy alert message** for Teams or email

<Frame caption="Intake duplicate alert with match scores and sibling acknowledgement">
  <img src="https://mintcdn.com/district79/Z3PS5mQpT9tftUQW/images/screenshots/intake-duplicates.png?fit=max&auto=format&n=Z3PS5mQpT9tftUQW&q=85&s=d144953165cc4a27af06f0ec6dbd0aba" alt="Intake form showing possible duplicate matches and sibling flag checkbox" width="1013" height="732" data-path="images/screenshots/intake-duplicates.png" />
</Frame>

## Flagged section

Students marked by Intake Members with **This is a different person** appear here for review.

Intake may flag a pair when names and DOB are similar but the student insists they are a different person — often siblings.

## Auto-detected section

The system scans students for:

* **Same DOB + similar name** (fuzzy match, including middle-name omissions), **or**
* **Same DOB + same home address** (even when names do not fuzzy-match)

Pairs already confirmed as siblings, manually dismissed, or still flagged in the first section are excluded.

## Address comparison

Between each pair, a comparison block shows:

| Badge                     | Meaning                                                   |
| ------------------------- | --------------------------------------------------------- |
| **Same verified address** | NYC-standardized data matches                             |
| **Same address**          | Street, apt, city, and ZIP align                          |
| **Same building**         | Same building, different unit — likely siblings           |
| **Different address**     | Different homes — sibling at new address or possible move |

<Tip>
  **Matched by address** appears when the pair was surfaced primarily by home address, not name similarity.
</Tip>

Each student card also shows their formatted address (street + apt on one line, city/state/ZIP below) and a **Verified** badge when NYC Geoclient confirmed the record.

## Actions

| Action                        | Result                                                                                                |
| ----------------------------- | ----------------------------------------------------------------------------------------------------- |
| **Confirm Siblings**          | Links both records bidirectionally; sibling badge appears on student pages                            |
| **Merge Records**             | Copies missing fields (including address and apt) from secondary to primary and removes the duplicate |
| **Dismiss / Not a duplicate** | Hides the pair permanently                                                                            |

<Warning>
  **Merge** permanently deletes the non-primary record and frees its drawer slot. Choose the record with the most complete data as primary.
</Warning>

## Related pages

* [Intake workflow](/workflows/intake) — how intake flags siblings and runs address-aware duplicate checks
* [Address and NYC verification](/reference/address-and-verification)

<Frame caption="Students → Duplicates — review flagged siblings and auto-detected pairs">
  <img src="https://mintcdn.com/district79/eNUO5DyWI5SdrN_l/images/screenshots/duplicates-page.png?fit=max&auto=format&n=eNUO5DyWI5SdrN_l&q=85&s=122da11a0caf9e663ec5e8120cb142ee" alt="Duplicate Review page with confirm, merge, and dismiss guidance" width="1400" height="900" data-path="images/screenshots/duplicates-page.png" />
</Frame>
