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

# Custom columns

> Add custom fields to your member list (e.g. graduation year, shirt size)

Custom columns let you store extra information for each member (e.g. graduation year, shirt size, committee) and use it for filtering and display.

## Add a custom column

1. Go to **Members** and open **Custom columns** (or **Settings** → **Member columns**, depending on your app).
2. Click **Add column** (or **Add custom column**).
3. Set:
   * **Name**: Internal name used in the list and for CSV mapping (e.g. `Graduation Year`). Use letters, numbers, spaces; avoid special characters if you use CSV import.
   * **Data type**: **String**, **Number**, **Date**, or **Boolean**.
   * **Sort order**: Order in which the column appears in the list (lower numbers first).
4. Save. The column appears in the member list and in the add/edit member form.

<Note>
  Column names must be unique per organization. After creation, changing the name may affect CSV imports that use the old name.
</Note>

## Data types

* **String**: Text (e.g. major, shirt size "M").
* **Number**: Numeric values (e.g. graduation year 2026, ID number).
* **Date**: Date only (e.g. join date, birth date).
* **Boolean**: Yes/No or true/false (e.g. "Board member", "Paid member").

## Fill in values

* **Per member**: When [editing a member](/members/edit-and-remove), fill in the custom column values.
* **Bulk**: Use [CSV upload](/members/csv-upload) and include a column whose header matches the custom column name exactly. Rowhouse will map and import those values.

## Filter and sort

* In the Members list, use [filters](/members/filters-and-search) to show only members where a custom column equals (or contains) a value.
* Sort by a custom column if the UI supports it (column header click or sort dropdown).

<Tip>
  Use consistent values (e.g. "2025" not "Fall 2025" for a graduation year number column) so filtering and sorting work as expected.
</Tip>

## Reorder or remove

* **Reorder**: Change the **sort order** of custom columns so they appear in the order you want.
* **Remove**: Delete the column from the custom columns settings. Existing values for that column are removed from member records; other data is unchanged.