When an Invoice is generated, it uses a Contract to piece all of the information together. The Contract contains references to all of the other objects used in calculation of an Invoice. For example, a Contract contains references to a Template (the graphical template used when displaying an Invoice) and the various Meters (Flat Rate Meter and Timed Meter objects are used to generate the bill).
The Contract consists of the following properties...
Description: A description for the Contract.
Currency: The symbol for the currency (i.e. $).
Include Tax: Choose whether to add tax on to the bill calculation. If this is set to false, the 'Tax rate percentage' will not be used incalculating the Invoice.
Tax rate percentage: If the 'Invoice Tax' property is set to true, this percentage will be used to calculate the Invoice.
Management Fee: This value is added onto the Invoice.
Facilities Improvement Fee: This value is added onto the Invoice.
Surcharge: This value is added onto the Invoice.
Meter: A Contract can use multiple Meters to generate an Invoice. Clicking the '+' symbol adds a Meter whereby the user can select the Utility and Meter from a drop down list. Clicking the cross symbol removes the Utility (or Meter) from the list. Each Meter also has a percentage value associated with it. For example, a Meter could be split to between two Tenants by using a Meter percentage value of '%50'.