My business take 2 or 3 days to deliver product.

Example, In Invoice, i select *7 days payment terms* (on 10.4.2020) so the *due date will be 17.4.2020*

But the product is delivered (on  12.4.2020) **** I want due date to be 19.4.2020**** automatically

Is there anyway to automatically change due date (based on date of delivery)?

*** we don't know exact date of delivery. (sometimes 1 day sometimes 3 days. after invoiced)

currently using odoo 13 community .