What is the impact of setting "isPropagateExceptionFromChildToParent" DSS to true
In my activity, I've called 2 different Connect-SQL rules to run in parallel by using Run In Parallel option in RDB-Save method.

But when there is any error or exceptions occured in these RDB-Save steps, I'm not getting any errors in the activity.
Then by verifying in Pega documentation, I got to know that we need to add isPropagateExceptionFromChildToParent DSS To Pega-RULES ruleset and set to true to get or capture any errors or exceptions occured on the RDB steps. I've tried it and now I'm able to get the RDB method errors in my activity (main requestor)

So now I want to know if there will be any other impacts when we set the value of this DSS - isPropagateExceptionFromChildToParent to true.
@AkhilaK What version are you on?
Are you following RDB-Save method ?
I found an old BUG-285310/ US-158728 which was fixed in 7.3 where When one of the Connect SQLs fails, the error is not being caught either in the Jump (StepStatusFail or "On exception, jump to later step label") of the RDB-Save method or later in the Connect-Wait method.
User calling stored procedure through Connect SQL and on some certain conditions they are running into some errors but the errors are not captured in RDB-Save .
The DSS catches those instances. I am unable to find any other documentation about it. I suggest that you log a support incident if you run into any issues. If you log an issue on the MSP, please provide the INC reference here to help us track it.