I use the event notifier with a Iframe (https://community.onespan.com/documentation/onespan-sign/codeshare/esignlive-event-notifier) for couple years in my projet and when I have configure it initially the event to check for completion was ESL:MESSAGE:SUCCESS:SIGNER_COMPLETE.

I don't know if there has been a change in the event because i'm not receving ESL:MESSAGE:SUCCESS:SIGNER_COMPLETE anymore and I receive ESL:MESSAGE:SUCCESS:SIGNER_COMPLETE_REVIEWED for the last message after signature.

What is the difference and impact?