Intercompany Reconciliation - Sales Order

Hi All!

We have an intercompany PO and SO between two subsidiaries. Now the issue is that the SO side is completely invoiced with item fulfillments but in actual it has not been received at the other subsidiary which has a PO of the full amount but the receipt of less quantity when billing. Can you please advise if I can edit the invoice of the later subsidiary linked to the SO to match with the item receipt of the PO side so I can settle them both off?

Please also advise if editing the Intercompany Item Fulfillment is also possible because while editing this with the invoice I received an error saying "You cannot receive more items than you shipped for an intercompany transfer order." This is when I uncheck the unfulfilled items from the Item Fulfillment list.