IBAN not transfered to Idoc

Hi,

I have defined the IBAN in the house bank and when I do the payment run I need to transfer the IBAN of the house bank into the filed E1IDB02 -FIIKONTO of the idoc.

I have tried various ways by selecting the transfer IBAN check box in the variant of the payment program but the IBAN is not been transfered.

Any ideas?

Thanks,

Srini