Expand the Minimum Order Amount panel.

Set Enable to Yes .

Indicate the Minimum Order Amount , after discounts have been applied to the cart in the Minimum Amount text field.

Edit Description Message . This is a message that could always display, that will inform the customer there is a minimum order amount.

Edit Error to Show in Shopping Cart . This is a message that will display, if the cart subtotal does not meet the minimum order amount.

Set Validate Each Address Separately in Multi-Address Checkout depending upon whether or not the minimum order amount needs to be enforced for multi-address orders.

Edit Multi-Address Description Message . This is a message that could always display, that will inform the customer there is a minimum order amount when they check out using multiple addresses.

Save your changes.