# site_props_conflict: The site's props changed since they were read

> The site's props changed since they were read

| Where                                   | HTTP status |
| --------------------------------------- | ----------- |
| the API (`code` of the problem details) | 409         |

## What to do

Read the site's components again (GET), apply your change to the props it shows now and send the PUT with the new props_revision as expected_props_revision.