# Effort and impact Adding impact and/or effort on work items is a great way to communicate and share rough estimations and sort work so that the low-hanging fruits (high impact, low effort) get prioritized over things that have less impact and/or require more effort.

From the “...” menu on a work item, select **Set effort** or **Set impact,** press `e` (for effort) or `i` (for impact), or click the existing impact and effort. You can by default choose between **Small, Medium, Large,** or **None** in the selector, but you can also customize them.

## Custom impact and effort You want to customize your impact and effort scale, you can do so in the “Impact and Effort” section in space settings:

You can drag them to order them (remember to keep smallest on top) and can choose name color, as well as add up to 9 custom levels. ## Prioritizing based on effort and impact Kitemaker can automatically sort the work items based on impact and effort. From the menu at the top of the status column, select I**mpact & effort** in the **Ordering**. Kitemaker will use a scoring formula to ensure that at all times low-hanging fruits are on the top and lower impact higher effort items are further down.

{% hint style="info" %} The scoring used in prioritization is defined as `$\frac{Impact}{Effort}$.` Where *Impact* is 0.5 for small, 1.0 for medium, 2 for large, and 0.25 if it’s missing. *Effort* is 1 for small, 2 for medium, 3 for large, and 4 if it’s missing. {% endhint %}