> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/rdm/knowledge-base/troubleshooting-articles/variable-testing-tip.md).

# Variable testing tip

A quick trick to troubleshoot variable values is to have Remote Desktop Manager return them to the user when launching a session using the ***Message prompt*** feature.

Here are the steps to set this up:

1. Right-click on a session entry and select ***Properties***.
2. In the ***Connection*** section, go to the ***Before open*** tab, and select the ***Message prompt*** option from the dropdown menu.

![](https://cdnweb.devolutions.net/docs/RDMW4131_2024_3.png)

3. Enter the variables that need troubleshooting, and click on ***Update***.

![](https://cdnweb.devolutions.net/docs/RDMW4133_2024_3.png)

4. Launch the session as usual. A Remote Desktop Manager prompt containing the variables' values should then appear.


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