Is it possible to call AR_INVOICE_API_PUB.CREATE_SINGLE_INVOICE for a source with NON automatic Tran

Hi, I am calling the AR import API in a package for a transaction source which has not automatic transaction numbering. I assign a value in 'l_trx_header_total_tbl(1).trx_number' which I can see in the log but I get all the time the following message: Trx_header_id = 1, Trx_line_id = , Trx_dist_id = , Error Message = Transaction Numbering is manual. You must enter a value., Invalid Value = . Can we use this API with such a source set up? Best Regards Aline