If invoicing is enabled for your account, you can add an invoice to a job.
To do so you need to specify the following XML with the job.
<invoice>
<number></number>
<description>Sample Description Here</description>
<tax_rate>5.5</tax_rate>
<line_items type="array">
<line_item>
<code>wid1</code>
<description>Widgets</description>
<unit_cost>100.0</unit_cost>
<requested_quantity>0.0</requested_quantity>
<actual_quantity>1.0</actual_quantity>
</line_item>
<line_item>
<code>lab</code>
<description>Labour</description>
<unit_cost>75.0</unit_cost>
<requested_quantity>0.0</requested_quantity>
<actual_quantity>2.5</actual_quantity>
</line_item>
</line_items>
</invoice>vWork will calculate the line item totals and invoice totals for you.
Dispatchers and mobile workers may also be able to add, edit and delete invoice information depending on their permissions.