http://ha-ng.facebookwkhpilnemxj7asaniu7vnjjbiltxjqhye3mhbshg7kx5tfyd.onion/business/help/965529646866485
Beginning in January 2024, you can no longer create, duplicate or import campaigns, ad sets and ads previously created with the original objectives. As soon as you transition from original to simplified objectives, be sure to pause the campaigns, ad sets and ads that use original objectives to avoid running identical campaigns in parallel.