Connect CDC creates topics through a Kafka consumer, which relies on the Kafka broker property auto.create.topics.enable being set to true. In Confluent Cloud, this broker property is set to false by default and cannot be modified in most environments, as documented by Confluent.
Because topic creation is disabled, the Share operation cannot be used to create new topics in Confluent Cloud.
This limitation does not prevent schema registration when topics already exist. In Connect CDC, you are expected to manually create Kafka topics in Confluent Cloud. Once the topic is available, Connect CDC can automatically generate and register the schema for the selected source table during distribution, without attempting to create the topic. If a schema already exists, it can be reused; otherwise, Connect CDC can attempt to register the schema against the existing topic.
To support Confluent Cloud environments, Precisely recommends manually creating Kafka topics and schemas before configuring Connect CDC, or using an external process to generate schemas and registering them directly in Schema Registry.