---
title: Data updates
description: "Replace a dataset from a file or keep it current with Dropbox sync, so your maps keep their layers and styling when the source data changes."
---

Update a dataset when its source changes. Maps keep their layers and styling while MangoMap replaces the dataset features.

## Choose an update method

**[Update from a file](/docs/data-updates/update-a-dataset-from-a-file)**

Upload a fresh CSV, GeoJSON, KML, Shapefile, or MapInfo TAB dataset.

**[Set up Dropbox sync](/docs/data-updates/set-up-dropbox-sync)**

Connect supported source files and let MangoMap pick up later changes.

**[Preserve map styling](/docs/data-updates/refresh-data-without-losing-styling)**

Choose the safest update path and understand what stays unchanged.

## Fix an update problem

**[File update failed](/docs/data-updates/troubleshoot-update-from-file-failed)**

Check the selected format, required companion files, permissions, and processing errors.

**[Dropbox sync failed](/docs/data-updates/troubleshoot-dropbox-sync-failed)**

Diagnose invalid, moved, disconnected, or subscription-gated sync files.