How to import costs for non-shippable items from Sales Order into PPM

Summary:

We have a client use case where non shippable items (like software) are part of a Sales Order and have POET attributes populated at line level. There would be no AR invoice generated for these lines either, because we want to bill them from Projects. Since there are no inventory transactions/cost distributions are generated for these items, how can we import the costs for these items into a Project that they are tagged to.

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