> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getcollate.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Column-Level Lineage
> View column-level lineage to trace transformations and dependencies for data quality, debugging, and impact analysis.
# Column-Level Lineage
Column-level lineage lets you trace individual fields — not just tables — as they move through your data pipelines. Use it to understand exactly where a column comes from, how it's transformed, and what depends on it.
**Tip**: Drill down into any table node to see its individual columns and their lineage connections.
Collate generates column-level lineage automatically when you run the **Lineage Agent**. You can also edit it manually to capture any relationships that aren't automatically detected.
## Manually Edit Column-Level Lineage
Edit column-level lineage directly in the Collate UI — no ingestion required.
1. Open the **Lineage** tab on a table page.
2. Click the **Edit** icon in the top right corner.
3. Use the anchor points on either side of a column to draw connections to other columns.
4. To trace a column from a table not already in the graph, add the table first, then connect its columns.
Watch the video below to see column-level lineage editing in action.
Edit the table and column level lineage manually.
Watch the video below to see column-level lineage editing in action.