Declare trigger and OnChange in pega

OnChange

Declare OnChange rules to run an activity automatically at activity step boundaries when the value of specified property changes. This capability provides a form of automatic forward chaining.
OnChange activity to be executed automatically by a Declare OnChange rule, such activities must not use any methods that directly change the properties or the database.
declare onChange

Trigger Activity

Trigger activity to be executed automatically by a Declare Trigger rule. Because triggered activities run during database commits, they cannot themselves commit database transactions.
declare_trigger





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