Material Request

is it possible to have a Material request per project and then can call that request to issue as purchase order

i search for the same and have no idea !

i need to add material (products) to a lis, after the project is finished, i want to make a invoice with all of them.
i found nothing like this, but since a week i know how to implement this. but i don’t want to code a funktion that exists.
normaly a program like dolibarr shoud can do this. so i wonder that i can not find anything like this.

is here a professional user who know’s more ?
thanks !!!

Create a draft supplier order at any time
THEN modify it & assign it to project
Add products to draft order whenever you like
Validate