Create an event trigger when WCFM sends a message.

Then click to button Create

Expand the event trigger you just create and scroll down to section.

Notification content

1. {wcfm_messages_type} Show type of notification
2. {wcfm_messages} Show detailed push notifications

Recipients

1. Type select Email/Merge tag
2. Recipient fill {message_to}

Conditionals

1. Select Push notification if
2. Merge Tag fill {wcfm_messages_type}
3. Operator select is equal to
4. Value fill order

Once the configuration is done, press the Save Changes button

Video guide

1. Config

2. Result