There is an option to create a project transaction for the issue of inventory parts to project activities. The internal price of the created transaction will be set to the standard cost of the inventory article. If a margin is connected to the project, then this is used to calculate the sales price, otherwise the sales price is set equal to the internal price.
Note that supplier invoices for inventory parts normally shouldn't be forwarded to the project, since transactions will be created for these when issuing the part.
If the setting Propose Project Transaction on the project is active, the user will be sent to the option to create a project transaction when issuing or returning material. A valid report code of type material needs to be added to be able to create the transaction.