> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firstresonance.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Enable part interchangeability

> Allow any revision of a part to be used in place of the specific revision specified in the aBOM.

When part interchangeability is on, any revision of a part can be installed wherever the aBOM specifies a particular revision. This is useful when revision-level differences are not functionally significant.

<Note>
  Use this functionality when your organization enforces that part numbers have the same form, fit, and function, and uses different part numbers when they do not.
</Note>

## Enable part interchangeability

1. In ION, go to **Settings > Supply Chain > Parts**.
2. In the **Part Interchangeability** section, turn on **Allow any part revision to be used**.

## How it behaves

Once enabled, while kitting or installing you can consume inventory that has the same part number as the required part even if it's a different revision.

For example, in the aBOM below Rev C is required, but a Rev B has been installed:

<img src="https://mintcdn.com/firstresonance/rku--fZNcQwFktZc/images/legacy/image%20(208).png?fit=max&auto=format&n=rku--fZNcQwFktZc&q=85&s=2fecc7b431c48519b8df1e427ceabe21" alt="aBOM showing a Rev B installed where Rev C is required" data-size="original" width="958" height="1416" data-path="images/legacy/image (208).png" />

## Related

* [Configure part revision schemes](/administration/supply-chain-settings/configure-part-revision-schemes)