---
title: "Data Options Overlay"
slug: "data-options-overlay"
updated: 2023-04-25T23:14:01Z
published: 2023-04-25T23:14:01Z
canonical: "docs.interprose.com/data-options-overlay"
---

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

# Data Options Overlay

Several ETL Import profiles allow the use of Overlay. Please use with caution to avoid accidentally overwriting data.

![](https://cdn.document360.io/6c7303ca-5ffc-4149-8868-8ea498eee635/Images/Documentation/data%20overlay.png?sv=2026-02-06&spr=https&st=2026-10-31T16%3A38%3A44Z&se=2026-10-31T17%3A38%3A44Z&sr=c&sp=r&sig=0wNcEZUOhueusWDsbeNIHOzl4F7ATeYTvPn7vFK8cf0%3D)

When this option is enabled, all mapped fields will be updated, replacing their current values.

NoteThis means that ANY blank values in columns of the file being mapped and loaded will replace non-blank values already stored in ACE.  

ETL Layouts can be downloaded under Help -> Layout -> ETL Fields.

![](https://cdn.document360.io/6c7303ca-5ffc-4149-8868-8ea498eee635/Images/Documentation/etlylayout.png?sv=2026-02-06&spr=https&st=2026-10-31T16%3A38%3A44Z&se=2026-10-31T17%3A38%3A44Z&sr=c&sp=r&sig=0wNcEZUOhueusWDsbeNIHOzl4F7ATeYTvPn7vFK8cf0%3D)