It’s happened to me too! It has been a month and I have not been able to tag anything and it’s connecting to another business that I had on Facebook. Wrong merchandise and I can’t undo it. I’ve talk to Facebook and shopify and they’re all being completely impossible.
I managers on all the accounts and they’re saying that I’m not. Were you able to fix yours? And how did you?
I am also having this problem. When the switch happened it disabled the old shopify facebook app so i tried to connect on the new system. I have used facebook and shopify connected for 5 years. Within 24 hours my commerce account was banned for 'violating community standards'. I have appealed and still no joy.