Can doc_category_code and voucher_num be imported by Payables Open Interface Import?

Dears,

As we need to change our invoice import from Expense Invoice Import to Payables Open interface Import in the version of 11.2.10.5, we can import doc_category_code with voucher_num by Expense Invoice Import before.  When using Open Interface import, the invoice import reject the invoice interface records.  After checking the Oracle Payables user guide, either doc_category_code or voucher_num is allowed to be populated.  I can't import any invoice record if voucher_num is not null although doc_category_code is valid (allow document sequence override is enabled and sequential numbering is partially used)

Could you please advise if I can import invoices with doc_cateogry_code and voucher_num by Payables Open interface Import ? as expense invoice import allows to do so.