How to implement KID number for Norway.

Hi,

I have a requirement in which we have to implement KID nnumber for Norway Client.

He wants to send the KID number as payment reference in the invoice.

Request help in regards to this.

I found a link that has some inputs about function modules.

Payment Reference no. (KID No.) for Norway Implementation.

But how that can be implemented in SAP.

Thanks.

Chinmoy