---
title: Mailing - My preview on import shows Blank or Undefined
description: Mailing - My preview on import shows Blank or Undefined
---

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# Mailing - My preview on import shows Blank or Undefined

After you start mapping your list you might see the words UNDEFINED as the preview or it might be blank. There is no reason to worry, this just means that we were not able to load the preview as quickly as we wanted and you should just continue the unload process. This does not indicate an error with your list.

![undefined.png](https://malcolm-en-gb.s3.eu-west-1.amazonaws.com/instances/EPHiwPy6Od/resources/7RfeY2YI0v/undefined.png)

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Last updated on 15th May 2020

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