You could also try to create a custom attribute with a SQL Query that dynamically looks up the current assignments using something like this as the query (and you can add whatever is needed from the view like assignment type, inherited or direct, context ....):
select mcOtherMskeyValue + '['+isnull(cast(mcValidFrom as varchar),'The big bang')+':'+isnull(cast(mcValidTo as varchar),'End of time')+']' as Assignment from idmv_link_ext_active with(nolock) where mcThismskey = %MSKEY%
(on Oracle use || instead of +, NVL instead of isnull and no with(nolock))
Then you dont need to feed the custom attribute by provision triggers.
Br,
Per Christian
