process_Transactions error

Hi,
I have written a code for subinventory transfer

INV_TXN_MANAGER_PUB.process_Transactions returns an error : All records failed after line validation

(no locator, no serial, not lot controllable item)
----------------------------------------------------------------------------------------------------------------------------------------------
DECLARE
  L_TRANSACTION_HEADER_ID NUMBER;
  L_TRANSACT_INTERFACE_ID NUMBER;
  L_RETURN_STATUS VARCHAR2(1024);
  L_MSG_COUNT NUMBER;
  L_MSG_DATA VARCHAR2(1024);
  L_TRANS_COUNT NUMBER;
  retcd number;
BEGIN
  SELECT MTL_MATERIAL_TRANSACTIONS_S.NEXTVAL
    INTO L_TRANSACT_INTERFACE_ID
    FROM DUAL;
  SELECT MTL_MATERIAL_TRANSACTIONS_S.NEXTVAL
    INTO L_TRANSACTION_HEADER_ID
    FROM DUAL;
  INSERT INTO MTL_TRANSACTIONS_INTERFACE
    (CREATION_DATE,
     CREATED_BY,
     LAST_UPDATE_DATE,