how to add header text in fm SD_SALESDOCUMENT_CREATE

I americium investigating successful FM "SD_SALESDOCUMENT_CREATE". I americium passing "APPLOBJECT" arsenic "VBBK", "TEXT_ID" arsenic "0001", "LINEAMOUNT" arsenic "00001" successful array "TEXTHEADERS_EX" and "APPLOBJECT" arsenic "VBBK", "TEXT_ID" arsenic "0001", "LINEAMOUNT" arsenic "00001" and successful "LINE" I walk the header substance successful array "TEXTLINES_EX" . But lone income bid gets created. When I unfastened the bid successful VA03 header substance does not get updated. Note I bash investigating with pursuing trial sequence:

SD_SALESDOCUMENT_CREATE
BAPI_TRANSACTION_COMMIT

Please archer if I americium investigating successful incorrect direction.