# Overview

Document types are used in the ERP, to tell apart documents with different purposes, for example **Sale** **orders** and **Calibration** **orders** ( Both are orders, but of different types ). Document types are always connected to the document, whose sub-type they are.

![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-04/scaled-1680-/laqimage.png)

Users with proper permissions can add new and edit existing document types. Document types can also be exported into an excel file.