I have a custom child object with Account as Master. A flow sends a NPS survey to the child record-contact X hours after First_Transaction_Date__c
The thing is that several child record can have the same First_Transaction_Date__c, but in that case I only want to send one Survey. Is there a way to do this with a Flow on the child object? I've tried setting a criteria that only sends the survey if the related Account has not been sent a survey yet, but when the First_Transaction_Date__c is the exact same for all child records, it doesn't work.
One work around would be to trigger the flow on the Account but first I'd like to see if there's something I'm missing to do this on with the flow on the child object.
Thanks in advance. /Y