Hello,

I'm looking for a module/solution to help forecast my cash-flow based on my sale orders and down payments. 

My mechanism is the following. Usually 1 sale order will be paid by multiple Down Payments, let's say for example:
#Down Payment 1 - Month 1 - 30% of the Sale Order total amount
#Down Payment 2 - Month 2 - 30% of the Sale Order total amount
#Down Payment 3 - Month 3 - 40% of the Sale Order total amount

I'm thinking of a "Forecast Payment" tab on the Sale Order, with a table where I can add my forecast down payments

Before building it on my own, does anyone know any module on the marketplace that already offers a similar function ? (I have not been able to find one so far)

Precision: Down payments are not linked to my sale order lines, and I do not want to use sale.order.lines for this mechanism, (I want to avoid ventilate dozens of sale order lines per down payment) - so I need a distinct mechanism

Cheers