Functionality
You can use this method to change the data for a future transaction or atransaction for a listed option that has already been created.
The changes are carried out with the selected field changes concept.This means that the changed data is transferred in the
GENERALCONTRACTDATA (or FUTURE) parameter, the fields that areto be changed, and their values copied, are indicated in theGENERALCONTRACTDATAX (or FUTUREX) parameter.

Example
Changing the price for a futures contract:
Set the COMPANYCODE and FINANCIALTRANSACTION parameters.Set the FUTURE-PRICE field to the new value. Set fieldFUTUREX-PRICE to 'X'. Call the Future.Change method.
This is one possibility for using the Change method. Use thefollowing procedure to change a futures transaction or a transaction fora listed option:
Read the data for a transaction using Future.GetDetail. Copy andchange the data to suit your requirements. Call
Future.PrepareChangeStructure to get the change parameters. CallFuture.Change.

Notes
If you set the TESTRUN parameter this calls the BAPI insimulation mode.
To write the data to the database after running a BAPI call in an updaterun (TESTRUN initial), a commit work must be triggered,for example with BapiService.TransactionCommit.
Messages are returned in the RETURN parameter.
A transaction can only be changed successfully if the transferred datameets the online transaction consistency conditions. In this case theRETURNCOMPANYCODE and RETURNFINANCIALTRANSACTIONparameters are filled.
If the data is not consistent or complete it is rejected. In this casethe RETURN parameter contains corresponding messages and theRETURNCOMPANYCODE and RETURNFINANCIALTRANSACTIONparameters are initial.
For more information about parameters, see the interface parameterdocumentation
INCLUDE FTR_BAPI_BUKRS_CHANGE OBJECT DOKU ID TX
INCLUDE FTR_BAPI_RFHA_CHANGE OBJECT DOKU ID TX

Description
An import parameter that uniquely identifies a company code.

Description
This import parameter uniquely identifies a financial transaction withina company code.

Description
An import parameter for transferring the special (for a specific productcategory) value of a future.
In this parameter you can transfer the new values for fields you want tochange. The change structure (FUTUREX) must also be notified of thefields to be changed.
For further information about the individual parameter fields, see therelevant data element documentation in the ABAP dictionary.
INCLUDE FTR_BAPI_PREP_STRUC OBJECT DOKU ID TX
INCLUDE FTR_BAPI_PREP_STRUC_WERT OBJECT DOKU ID TX
INCLUDE FTR_BAPI_GEN_CHANGE OBJECT DOKU ID TX
INCLUDE FTR_BAPI_PREP_STRUC OBJECT DOKU ID TX
INCLUDE FTR_BAPI_PREP_STRUC_WERT OBJECT DOKU ID TX
INCLUDE FTR_BAPI_TEST_M OBJECT DOKU ID TX
INCLUDE FTR_BAPI_TEST_R OBJECT DOKU ID TX
INCLUDE FTR_BAPI_RETURN_TAB OBJECT DOKU ID TX