It is an important task - at least annually - to ensure that your school records are accurate and reflect the current status, name and details of the schools involved. Some of the elements that can change - open/closed schools and URN details - can prevent school assessment data loading successfully. Updating things like school names are also important as school's don't change name lightly and where this happens, the Heads of schools like to see the name used appropriately. It is also - generally - good practice to keep records up to date.
The video below explains how this is done and takes less than 3 minutes to watch.