To use progress invoicing
Progress Invoice is an invoice type similar to Installment. The installment amount depends on the project progress and the element or activity sales rates. Progress invoice specifications involve invoicing partial contract amounts at agreed intervals, for example, every four weeks. You can release this data to Invoicing.
The fixed amount of all the installments is equal to the total contract price. If progress is 100%, you can invoice the entire contract amount.
To use progress invoicing: