# Update existing products

<p class="callout danger">This action requires the **"Update products"** permission.</p>

When it comes to updating product's properties, there are specifics regarding certain properties.

![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2025-06/scaled-1680-/omcimage.png)


##### Product SKU

Every product has its own unique SKU, which must remain unchanged, to avoid unintentional duplicates.

<p class="callout danger">Product's **SKU should not be changed,** if at all avoidable. </p>

##### Product short name

A product has a full and an abbreviated version of its name. The short version of the name should not be updated, as it version it is written on many documents, including invoices. Short name should remain unchanged to avoid any <span aria-level="1" class="yKMVIe" role="heading">discrepancies</span>.

<p class="callout warning">Product's short name should not be updated, if issued invoices exist for that product.</p>

##### Product type and classification

Product type or classification should not be changed unless the SKU must be changed, as these properties are linked. Type and classification are used to determine SKU structure.

<p class="callout danger">Changing **only** either **type** **or classification** will result in an **error.**</p>

![output.gif](https://how-to-erp.dewesoft.com/uploads/images/gallery/2025-06/ONnoutput.gif)