I am trying to externally handle the drop ship of items across subsidiaries at arms length.

This is relatively easy at a manual level.

Subsidiary B raises Sales Order with Customer.

Subsidiary B raises Purchase Order with Subsidiary A

Subsidiary A raises Intercompany Sales Order (via Manage Intercompany Sales Orders)

Subsidiary A fulfills Intercompany Sales Order

Subsidiary A invoices etc.

Subsidiary B receives Intercompany Sales Order

Subsidiary B fulfills Sales Order for Customer

While this process is trivial within netsuite UI. I do not see a mechanism to initialize a Sales Order in Subsidiary A from a Purchase Order raised by Subsidiary B.

Is this even possible? I have attempted to manually create the Sales Order also, but this is rejected.