An oncost group is a collection of pay or bill oncosts that can be grouped into a single line item on invoices.
When an oncost group is created, a database field labelled Oncost Group <oncost group name> is available in Portal > Portal Maintenance > Document Formats for invoice and credit note formats that belong to the same country as the oncost group. By including the field within an invoice or credit note format, all oncosts that belong to the corresponding oncost group will be summed and will be displayed within the field as a single value on the invoice or credit note.
The set of oncosts that belong to an oncost group are subject to validity periods and can therefore be configured to vary over time. The system uses the invoice date to determine which subset of oncosts belong to the oncost group at the time of generating an invoice.
To create an oncost group you must specfiy the following:
country to which the oncost group applies
unique name of the oncost group
oncost type (pay or bill) that the oncost group
list of pay or bill oncosts that belong to the oncost group for each validity period.
Before attempting to create oncost groups, make sure that the relevant pay and bill oncosts have been configured in Portal > Rates and Rules > Maintenance.