When I set the stage of a task in the project module to the closing stage, I want the sales order line linked to that task to update the delivered quantity to match the initial quantity. For products that have Milestones set as their invoicing policy.
For example, I planned to sell 50hours for a service to one of my clients (milestones). When I mark the task linked to that item as done (closing stage), the delivered quantity on the sales order should update to 50hours. The sales order should now appear as "to invoice".
Can I do that by simply creating an automated action ? If so, how ?