How to issue invoices from other operating unit related to recorded sales order in specific operatin

Hi,

Please help us in this scenario

1 – We have one legal entity.

2 – We have three operating units.

3 – We want to record the Sales order in OU1

4 – We want to issue the invoice from other operating units the issuance invoice depends on the goods in which inventory store belongs to any of the operating units ( in other words when the goods we want to sell to customer exist in inventory belongs to operating unit 2 )

Example

1 – We have a Sales order with 1000 USD in operating unit 1 and we will ship this order in three shipments

2 – The first shipment we will ship exist in operating unit 1.