Incoming Sales Order and Value Fields

Hi,

I have a problem with the incoming sales order condition and the integration with COPA, I need that deppending on the account of the sales order ,the amount goes to one value field or another.

That is to say, If a incoming sales order goes to account 701000 , this amount would be in VVXX value field, and if another incoming sales order goes to account 702000 , this amount would be in VVZZ value field.

Can anyone tell me ,how can I do this?

Thanks a lot in advance,

Best regards,