EBS- IR-ISO in single operating unit is not creating IC AR or IC AP transactions in Financials

We have two inventory organizations, in one/single  operating unit.

Exm: Say OU1 has Inventory Org INV-A,  and Inventory Org INV-B.

We are using IR-ISO for inventory transfer between INV-A and INV-B. (Kindly note we are not using inter-org transfer process but using IR-ISO). But in this process found that oracle is not creating IC AR or IC AP invoices. So need to know if this is correct behavior ? and would appreciate if I get reference to metalink note or white paper explaining,  IR-ISO process in Single organization from finance perspective.