# Fix technologies on work orders

<p class="callout info">When updating **DNC** work orders, you have different types of reservation technologies: **Reservation&amp;Cutting** and **Reservation**.</p>

<p class="callout warning">The difference between **Reservation&amp;Cutting** and **Reservation** is in the way they **reserve material.** **Reservation&amp;Cutting** performs **virtual and physical reservation,** while **Reservation** only does **physical** reservation of the material.</p>

<p class="callout danger">You should only use either **Reservation&amp;technologies** or **Reservation**. Using both will result in an error.</p>

#### Work order is completed and technologies stayed opened

Sometimes work orders are completed, but some of its technologies remain open.

When this happens, the work order needs to be unlocked, after which the unnecessary technologies can be deleted. Once the technologies are deleted, the work order should be re-locked.

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2025-03/scaled-1680-/xaLimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2025-03/xaLimage.png)

Tasks can then be completed on the dashboard.