CALL TRANSACTION: Parameter RACOMMIT has no effect ?

Hello fellow ABAPers,

we have a COMMIT WORK in a program called with CALL TRANSACTION

that prematurely leads to its abortion ( which I know is normal ).

I tried the parameter RACOMMIT of structure CTU_PARAMS which

can be referred to by using additional command parameters as follows:

DATA: ctu_parameters TYPE ctu_params.
ctu_parameters-dismode = 'E'.
ctu_parameters-updmode = 'A'.
ctu_parameters-racommit = 'X'. "No abortion by COMMIT WORK
CALL TRANSACTION USING itab_bdcdata OPTIONS FROM ctu_parameters.

Setting ctu_parameters-racommit to 'X' is supposed to suppress this effect

(no premature end of the transaction on COMMIT WORK), but it doesn't

seem to have any effect.

Does anybody know how to make it work ?

looking forward to your ansers

Andreas