For those guys who are working extensively on MS rule engine and have faced trouble while
a) Adding rule to already deployed policy
b) Resetting arguments of rule
Trivial approach is either to remove policy and re-import it or make a copy of existing policies (1.0,1.1,1.2) but when u actually import the combination of tested policy and vocabulary, it say missing vocabulary or dependency could not be find.
TIP:
You can set nStatus to 0, this will give you flexibility to meet above two points without re-importing and creating versions of policies.
Use BiztalkRuleEngineDb
Update re_ruleset
set nStatus = 0
Where strName = 'MT340_Validation_Policy'
This holds good for vocabularies also.
*courtesy: Neha, my collugue