The sales payment date on a forecast is based on the invoice frequency set on the invoice project and the buffer days.
Define the invoice frequency on the invoice project
Click > .
In the form select the invoice project where you want to define an invoice frequency.
Click the tab and select the invoice frequency in the field.
Define the buffer days
Click > > .
In the form, click the tab.
Enter a number of buffer days in the field under .
: (The invoice date of the forecast is set to the end of the current month according to the project date).
Buffer days: 4
Sales payment days only apply to time-and-material projects.