How to re-export after a mapping change

This article explains what happens when you change your Accounting mappings or export format, and how to safely re-export expenses without creating duplicates in your accounting system.

What changes when you update your Accounting setup?

If you update anything under Settings → Accounting (for example categories, tax codes, tags, or contra accounts), those updates will apply to the next export you generate.

If you update a custom export format (for example by adding new columns/data points), you can re-export expenses that were already exported, and the new file will reflect the updated format.

Re-export expenses after a mapping or format change

1. Go to Settings → Accounting
2. Update your mapping (categories/tags/tax) and/or your custom export format
3. Click Save (so your next export uses the updated setup)
4. Decide the scope you need to re-export (for example, “all expenses exported since 1 May 2026”)
5. Export/download the file again using the same format you normally use (Generic or Custom)
6. Before importing, check the file looks right (columns + values), then import it into your accounting system

Avoid duplicate entries in your accounting system

To avoid duplicates, use one of these approaches:

• Export only expenses you haven’t imported yet (recommended)
• Re-export the same period and re-import, but make sure your accounting system can detect or prevent duplicates (this depends on your accounting system)

Good practice checks

• Re-export a small test batch first (then scale up)
• If you changed a custom format, confirm the expected columns and values appear in the file
• Name the file clearly (for example, “Re-export – new mapping – May 2026”)