I'm new to Odoo and trying out some options on how to deal with a way we deal with some of our projects. We act as a small scale ISP and provide connectivity to rural customers.

Some of our installation projects are carried out where we provide and install infrastructure, the customer pays for this, but we retain ownership of everything used - basically network build charges for our time and materials. I've worked out how to do this as an Inventory Transfer to an Inventory Loss location set up with the appropriate Fixed Asset accounts to reflect inventory becoming part of our network infrastructure.

However, in some cases the project is government funded, so we can't just bill a line item of 'Installation', we need to itemise the materials used and be able to track back to purchase invoice as we're limited on what margins we can apply. If we're audited we need to show supplier invoices for the project.

So, two parts to this. Firstly, can I create an invoice or sales order that will transfer the inventory to a fixed asset account within field service, or will that still need to be done as a transfer outwith field service. Secondly, how can I ensure the 'sale' price of the item is the inventory price?