Required - Standard expression to return Nationality of a confirmed BP

Hi,

I have a BRFPlus requirement to get the nationality of a confirmed BP. The Nationality value is to be used in further processing rules in the BRFPlus application.

Could you please tell me if there is any standard expression or function that will be of use.

The closest I could find is the expression IUXP_I_BP_COUNTRY. This expression takes the confirmed BP and returns the country in the address field.

i.e., field  LAND1.

However, our requirement is to get the nationality field of the BP i.e., BUT000-NATIO.

Is there any standard expression or function that does the same?

If not, what would you suggest? Create a new expression copying the IUXP_I_BP_COUNTRY expression or create a new expression/ function from scratch?

The nationality field can be retrieved by using FM BAPI_BUPA_CENTRAL_GETDETAIL.

Regards

Ullas Saffarulla