> For the complete documentation index, see [llms.txt](https://help.tillit.cloud/tillit/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tillit.cloud/tillit/knowledge-base/setting-up-tillit/material-definition/material-tolerance.md).

# Material Tolerance

### Overview

Tolerance are added in the configuration section but can be associated to the an material through the material tolerance table.

### Creating an Material Tolerance

Navigation: **Settings > Material Definition > Material**

Select the **relevant Material.** Open the **Material Tolerance** panel and fill out the necessary fields.

### Fields

| Name                | Description           |
| ------------------- | --------------------- |
| Process Variable \* | link process variable |
| Lower limit         | the lower limit value |
| Target              | the target value      |
| Upper Limit         | the upper value       |

Click the ***Save and close*** button to finalise.

{% hint style="info" %}
See the example sections to see how to use tolerances with materials
{% endhint %}