Make sure that you have finished editing dialogue, such as correctly naming the buttons and connecting to its corresponding messages. Also, do make sure that all rules of the messages are correctly set.
Remember to train your bot before publishing. Also, if you have updated utterances, you need to click on Train and wait until training is finished.
Most importantly, make sure your bot is connected to either Facebook page or LINE@ account. If not, you can follow the guide on Create Chatbot and Connect.
2. How to publish
Click on the Publish button on the top right corner, and wait for the “Successfully published” notification.
After publishing, you can test out your bot and check if the bot responds as expected.