We prefer you to Archive a child, as deleting a child will remove all data, not only from your Admin Dashboard but also the Parent Portal.
However, if you have created a child in error and need to delete them, follow the instructions below;
From the Admin Dashboard, expand Early Years and select Dashboard.
Click on the name to expand the group and select the child.
In the child's profile page, click Edit in the top right corner and scroll to the bottom, click Delete to remove the child.