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

# Enrichment columns

> Add a column from the catalog that fills itself in from outside data, and see the cost before you run it.

Enrichment columns fill in facts about your rows automatically, things like a work email, a phone number, a company's employee count, or a person's title. Pick one from the catalog, tell it which of your existing columns to read from, and Oneprofile fills in the column for every row.

## Open the Tools dock

Click **Add column** at the end of a table's header row to open the **Tools** panel, docked beside the grid. It opens on the **Enrichment** tab. The other tabs are **Agent**, **Functions**, and **Import & export**, for the table's other ways of filling a column.

## Find an enrichment

Rows on the **Enrichment** tab are grouped into shelves by what they find: **Email**, **Phone**, **Company**, **Person**, **Social profiles**, and **Relationships**. Scroll to the shelf you need, or type into **Search** at the top of the panel to search the whole catalog at once. Every row shows its price in credits per row, so you can compare a few before you pick one.

## Add the column

<Steps>
  <Step title="Pick an enrichment">
    Click a row on the **Enrichment** tab to open it in the column editor.
  </Step>

  <Step title="Set its inputs">
    The editor lists what the enrichment needs, for example an email address or a company's domain. For each one, pick the existing column that holds that value. The dropdown ranks your columns by fit, and dims any column it cannot use because it holds a whole record instead of a single value.
  </Step>

  <Step title="Create the column">
    Click **Create** to add the column without running it, or open the dropdown beside it for **Create & run 10 rows** or **Create & run 50 rows** to fill in a batch right away.
  </Step>

  <Step title="Run it later, if you skipped that">
    Open the column's header menu and choose **Run column**.
  </Step>
</Steps>

## What it costs

Each enrichment's price in credits shows on its row in the catalog, and again in the editor once you have picked one. Oneprofile checks multiple sources for the answer, in order, and charges you only for the source that actually finds it. Two rows can end up costing different amounts for the same enrichment, because one might be answered by the first source checked and the other by a source further down the list.

<Note>
  An input marked required has to have a value for a row to run. Rows missing it are skipped, not charged.
</Note>

If a run needs more credits than your workspace has, **Buy credits** from the billing page.

## Next steps

* [Running and views](/tables/running-and-views): Control what runs and when on a table
* [AI agent columns](/tables/ai-agent-columns): Add columns an agent fills in with its own reasoning
* [Credits and billing](/platform/credits-and-billing): See what enrichment columns cost and how to buy more credits