A declare trigger can be defined on any object that gets saved into the Pega database. The declare trigger will execute when an object gets saved. A use case would be, during the save operation, you detect an important change to a property and therefore need to perform some additional activity like post an update to an extranal system or update other records in the system.

Hi Ravi Kumar. 

To give you a simple answer,

Declare Trigger is a rule which is used to run an activity when ever a page of Declare trigger's "applies to" class or Declare trigger's "applies to" class is in hierarchy of your page class. It's not specific to Work classes.

For example, your declare trigger rule is in ABC-DEF-GHI-Data-Test and page class (temppage for example) is ABC-DEF-GHI-Data-Test, then if you save or commit that temppage (based on config in trigger rule), trigger will run the activity.

your declare trigger rule is in ABC-DEF-GHI-Data and page class (temppage for example) is ABC-DEF-GHI-Data-Test, then ALSO if you save or commit that temppage (based on config in trigger rule), trigger will run the activity.BECAUSE THERE IS INHERITANCE

your declare trigger rule is in ABC-DEF-GHI and page class (temppage for example) is ABC-DEF-GHI-Data-Test, then ALSO if you save or commit that temppage (based on config in trigger rule), trigger will run the activity. BECAUSE THERE IS INHERITANCE

your declare trigger rule is in ABC-DEF-GHI-Work-Test and page class (temppage for example) is ABC-DEF-GHI-Data-Test, then if you save or commit that temppage (based on config in trigger rule), trigger WILL NOT run the activity. BECAUSE THERE IS NO INHERITANCE

Hope this helps.

Thanks,

Abhijith Kolanakuduru

Pega Certified Lead System Architect

Now i got the clear picture.Thanks for your inputs

Great explanation Abhijith.

Thank you