Added new field to MIRO dynpro - but it is not saved

Hi,

we have added new field in MIRO dynpro, in the "Payment" tab - it is part of House bank, the field name is HKTID. It is now visible but when we post the invoice, this field is somehow ignored and it is blank in MIR4. It is not presented at all in RSEG nor RBKP, in BSEG is this field blank.

I haven't found any user-exit nor BaDI where could i process this field. Can someone tell me what can i do with this issue?

Thanks,

Ondrej Sustacek