# Parts for a job

Reserve parts for a job, order what's missing and see what was used, all from the job's Parts & POs tab.

Open the job and select the **Parts & POs** tab. It shows the job's purchase orders, parts held for it and stock used on it.

## Reserve parts

Reserving holds parts for a job so nobody else uses them.

1. Select **Reserve parts**.
2. Search for the part, choose the location it's coming **From** and the quantity.
3. Select **Reserve parts**.

Reserved parts stop counting as available. If they're on the engineer's van, they see them at the top of **Parts used** in the app. To hold parts at the warehouse for an engineer, reserve them there and then [move them to the van](/stock/move-stock-to-a-van/).

Select **Release** if they're no longer needed.

## When the engineer answers "No" for parts

If an engineer finishes with "No" and says a part is needed, put the job in **Awaiting Parts** and select **Raise purchase order** here. See [Awaiting parts](/jobs/awaiting-parts/).

## Used on site

Parts an engineer takes off their van appear under **Stock used**. They go on the job's **Lines & billing** as material lines with the cost and your sell price.

## Cancelling the job

Cancelling a job releases its reserved parts. Its purchase orders stay open: the cancel window names them, so you can cancel them on the order if the parts aren't needed.