OK, I am going to start a new thread because the 2022 "solution" was not a solution at all but a request to start a new thread. My problem: I am getting Sync has unfortunately failed. Try again. when I go to the Sales Channel page in Etsy, select Square and request "sync your listings". This has only ever worked 2 times since I've been on Etsy (2019) and all the other times it has failed. I've tried disconnecting from Square multiple times, changing browsers, etc.
Please, someone tell me that someone has solved this???? I see lots of old messages from 2018-2022 complaining about this.
I'm having this issue too. Please fix. It's market season...