# Assigning Resources to a Service If you have resources setup, you can quickly add those by toggling the Requires Resource checkbox. Once that has been toggled a new area will appear to add the available resources to the service. If a service has been set to require resource(s), then SimpleSpa will only allow bookings to be completed online if the resource is available. In the calendar you can create overbook with an already allocated resource, but SimpleSpa will bring up a warning and the color of the appointment will be in light red indicating that a resource is not available for the service. Resources are typically used for finite equipment, machines and rooms to avoid double bookings. When resources are available, you can quickly toggle a resource calendar view by clicking on the View Dropdown in the appointments page

The Requires Resource toggle found in the Edit Service prompt

The Resource area, which appears when Requires Resource is toggle on

The Resource assignment/allocation prompt

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