Structured Creditor Reference

[Simo Sutela <qurnelius@netscape.net>]

Hello,

I would like to know what is the correct UBL invoice field or tag to 
represent the Creditor Reference [1], as described in ISO 11649 and 
mandated by the Single Euro Payment Area? It is distinct from the 
invoice ID because it's structured and contains a prefix that is not 
connected to the specific invoice in any way. It is always assigned by 
the seller.

Regards,
Simo Sutela
Finland

[1] See http://en.wikipedia.org/wiki/Creditor_Reference