I was having trouble enabling Post Notification in FlutterFlow. It kept showing an unknown error and asked me to contact the FlutterFlow team. After a lot of searching, I finally figured it out!
The issue was with my Firebase billing. Although Firebase showed that my account was still active (Blaze plan), it actually wasn’t—because my credit card had been blocked. Google didn't clearly notify me that the billing was inactive, so I wasted a lot of time trying to find the cause.
Just wanted to share this in case anyone else runs into a similar issue. Check your billing settings and make sure your payment method is active!😁