Do Order Management extensions work correctly when creating sales orders using Rest API?

Summary:

Due to business needs, an external system was integrated with Oracle Order Management cloud, which sends sales orders through an integration using Rest API.

According to the notes found in MOS, it is recommended to use extensions instead of post-transformation rules when orders are created by API.

An extension was created to assign invoice transaction type considering 2 data.

1.- Business unit

2- DFF at order line level

I have 3 scenarios

1.- It turns out that when sales orders are manually created this extension works correctly.

2.- When a sales order is created through Rest API and this order is created in Draft, the user manipulates the order and executes it manually here the extension also performs its function correctly.