Hello,

Blocking a Rule:-

PRPC stops processing  this rule and throws error message.

Withdrawing a Rule:-

Ignores the processing of all version of rules in current class and proceeds in class hierarchy and process the rule form parent class.

Thanks,

Hari

Hello,

A blocked rule and a withdrawn rule are both invisible to rule resolution. Similarly, both blocked rules and withdrawn rules prevent lower-version rules with the same RuleSet and visible key from being selected by rule resolution. However, a blocked rule may block other rules in any RuleSet, and a blocked rule stops rule resolution from finding rules in higher Applies To classes. A withdrawn rule affects other rules only in one RuleSet and one Applies Toclass.

When you skim a RuleSet version that contains a blocked rule, the resulting RuleSet version does not contain the blocked rule or any rules that the blocked rule blocks. When you skim a RuleSet version that contains a withdrawn rule, the resulting RuleSet version contains the withdrawn rule.

There is a good explanation provided here : https://community1.pega.com/community/product-support/question/blocked-vs-withdrawn

Hope this helps.

Best Regards,
Mounika

Blocking:

It will block the rule in all the versions and all the classes and throws an error 

Withdrawn:

This rule will not be picked up from same class and and same ruleset versions in all the versions.

Hi

Withdrawn:

This option makes the rule in the current version and previous versions in the same ruleset, withdrawn from the rule resolution. It means rule resolution, invalidates the withdrawn rule and its other lower versions in the same ruleset.

For example – Assume, if you have rule in ABC:01-01-01 version and updated the rule in ABC:01-01-02 version. When you withdraw the rule in 01-01-02 version, then the rule resolution never pick the rule in both 01-01-02 and 01-01-01. 

HI

Please find the below link

https://community.pega.com/knowledgebase/articles/rule-availability-options