Flexfield Information not visible to user when invoice created through AP interface tables

Greetings Dear Experts,

We are currently working with Oracle R12.1 Payables. We are creating invoices through Open Interface Payables tables and when we do so, we also use DFF definition for our invoice fiscal code in AP_INVOICES_INTERFACE. We are using a custom Attribute Category with its own segment. Afterwards we run Payables Open Interface Import process and it successfully inserts information into AP tables but user can't see information registered in DFF, but if we query the information registered in the Database we can see the information is there, none the less not visible to the user when he clicks on the DFF.