Having multiple branches is tough to manage so you shouldn't have to worry about moving a child between branches and what will happen to their data. With the move child feature it's just a few clicks and the child will be moved with all their information.
To move a child from one branch to another follow these steps:
Go to Child Profile
Select a child from the list of children in the room and a menu will appear, click Profile.
Move Child
Click on About tab
Choose the Registration info tab
Click the Edit button
Select the setting the child is moving to from the drop down-menu
Choose the class the child is moving to
Click the Save button
Note: The child will become withdrawn from the current institute.