@John S-2020 Please note that the azure-webapps tag is for the Azure Web App product.
Your question appears to be related to Confluent Cloud, which is a 3rd party service. They have their own support forum, that we suggest you post your question to as we are not equipped to troubleshoot 3rd party services.
If you feel the issue is related to Azure Marketplace implementation, feel free to reach out here for support and a Market Place expert can assist further.
We'll leave this question open in case anyone from the community can assist further. Thank you for your understanding.