Step 1: Sign in to the QnAMaker.ai portal with your Azure credentials. Use the User1-
[email protected] account
Step 2: Publish the knowledge base. In the QnA Maker portal, select Publish. Then to confirm, select Publish on the page.
The QnA Maker service is now successfully published. You can use the endpoint in your application or bot code.

Step 3: In the QnA Maker portal, on the Publish page, select Create bot.
This button appears only after you've published the knowledge base.
After publishing the knowledge base, you can create a bot from the Publish page.

Step 4: A new browser tab opens for the Azure portal, with the Azure Bot Service's creation page.
Configure the Azure bot service.
Bot name: bot12345678
The bot will be created.
Reference:
https://docs.microsoft.com/en-us/azure/cognitive-services/qnamaker/quickstarts/create-publish- knowledge-base