Admin users can set an Order approval limit  cap on how much a Unit Manager can spend. Large orders over the Order approval limit will need to be approved by the Admin user.
Go to System > Users > Manager  or Unit Manager > Edit User window Info tab 
Set the Order approval limit and click Save .
Important: This feature will only work if the ‘Orders Need Manager Approval’ setting is enabled for your suppliers.
Go to Kitchen Manager > Admin  > Suppliers  > select a Supplier > Info tab  > tick the Orders Need Manager Approval checkbox 
When a making an order on the Tablet or Desktop the order will bet set to Pending Approval. In Kitchen Manager Orders  left mouse click on the Pending Approval Order  and select Accept .
Users with an Order limit set, you will receive the following error message:
You will not be able to approve the order; you will need to speak with the Admin User who will have approval to place an order that exceeds the applied Order Limit.