> ## 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, like a work email, a phone number, or a company's employee count. Pick one from the catalog, tell it which of your columns to read, and it fills in every row. The Tools panel docked to the right of a table, with the Enrichment tab selected and its rows grouped under Email, Phone and Company headings, each row showing a price in credits per row. ## Find an enrichment Click **Tools** in the toolbar. The catalog opens beside the grid on its **Enrichment** tab. Its other tabs are **Agent**, **Functions** and **Import & export**. The **Enrichment** tab groups its rows into shelves by what they find: **Email**, **Phone**, **Company**, **Person**, **Social profiles** and **Relationships**. Scroll to the shelf you need, or type in **Search** at the top to look across every tab at once. Every row shows its price in credits per row, so you can compare a few before you pick. ## Add the column Click a row on the **Enrichment** tab. It opens in the column editor. The **Inputs** card lists what the enrichment needs, such as an email address or a company domain. For each one, pick the column that holds that value. Click **Create & run 10 rows** to add the column and fill in a first batch. The arrow beside it offers **Create & run 50 rows** and **Create and don't run**. Open the column's header menu and choose **Run column**. ## What it costs Each enrichment's price shows on its catalog row, and again in the editor once you pick one. Oneprofile checks several sources in order until one finds the answer. Every row that gets an answer costs the same shown price, whichever source answered it. ## Good to know An input marked required has to have a value for its row to run. Rows missing it are skipped, not charged. The dropdown ranks your columns by fit: exact type matches first, then other single values. A column that holds a whole record rather than one value is dimmed and cannot be picked. Sending a whole value where one fact belongs produces a wrong answer. **Add column** at the end of the header row is a separate, smaller control. It opens a short list of column types: **Enrichment**, **Use AI**, **Agent**, **Functions**, **Import & export**, and the plain types like text and number. **Enrichment** opens an empty column editor, while **Agent** and **Import & export** open the **Tools** panel on that tab. The batch sizes clamp to the rows you have. A table of 30 rows offers a run over 10 rows and a run over 30, rather than two identical options. A run stops when your workspace runs out, and the remaining rows never run. [Buy credits](/settings/credits-and-billing) and run the column again. ## Next steps Control what runs, when, and over which rows. Add a column an agent fills in with its own reasoning. See where credits go and how to buy more.