Intercompany for non shippable Item

Summary:

We are trying to do IC process for non shippable item. we are doing SFO Supply Chain financial flow setup and not able to understand what the process for internal transfer would be (like it is Internal transfer order for shippable item). How IC AP and AR invoice would be triggered when owning/shipping entity fulfils the internal order(software lines). There will be one customer sales order in selling entity which sells the software to the customer.

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