The Cost Definition is associated to the Tariff and will determine the costs.  For example the Cost Definition can hold the Pence Per Unit you want to charge. 

A Tariff (for Tenant billing purposes)  is linked to a single Tenant Provider Contract and defines the set of charges that will be applied to Tenants linked to this Contract for a single Commodity.

Viewing a Cost Definition

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Change the Name and/or Description of the Tariff as required

Viewing / Editing a Tariff

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An individual charge within a Tariff is defined using one or more Tariff Entries.
The output from Tariff Entry can be used as an input source of data into further Tariff Entries. This is useful when an individual charge needs to be calculated based on various factors, e.g. the total cost divided by the total consumption from a Supplier Invoice.
If one Tariff Entry is used to define an individual charge, then this must be linked to a Cost Definition.
If multiple Tariff Entries are used to define an individual charge, then the last Tariff Entry (which calculates the final charge amount) must be linked to a Cost Definition.
The Tariff Entries that have been configured for a Tariff are displayed in the Tariff Editor.

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