Requirement: The registration date on Contact needs to be updated to Today() if lead is converted.
Process Builder Solution: In criteria, I checked isConverted and ConvertedContactID as not null, in Immediate Action, I tried to set registration date to Today for the "[Lead].Converted Contact ID" record.
Issue: It is only working for new contacts during lead conversion but if you chose existing contact then it does not update the date value in Contact.
Is there any simple way to stamp for existing contacts as well?