Create and edit topics in your Power Virtual Agents bot
In Power Virtual Agents, a topic defines a how a bot conversation plays out.
A topic has trigger phrases - these are phrases, keywords, or questions that a user is likely to type that is related to a specific issue - and conversation nodes - these are what you use to define how a bot should respond and what it should do.
The AI uses natural language understanding to parse what a customer actually types and find the most appropriate trigger phrase or node.
For example, a user might type "Open hours" into your bot - the AI will be able to match that to the Store hours topic and begin a conversation that asks which store the customer is interested in, and then display the hours the store is open.
You can see how the bot conversation works in practice by testing it in the Test bot pane. This lets you fine-tune the topic until you are ready to deploy it without having to exit the Power Virtual Agents portal.
You can have up to 1000 topics in a bot.
Use system and sample topics
When you create bot, a number of topics will be automatically created for you.
- Four pre-populated User Topics that are titled as lessons. These lesson topics can be used to help understand simple to complex ways of using nodes to create bot conversations.
- A number of System Topics. These are pre-populated topics that you are likely to need during a bot conversation. We recommend you keep these and use them until you are comfortable with creating an end-to-end bot conversation.
You can edit both of these topic types in the same manner as for topics you create, however you cannot delete them.
Create a topic
Go to the Topics tab on the side navigation pane to open the topics page.
On the topics page, select New topic.
Specify a name, description, and one or more trigger phrases for the topic.
A trigger phrase is a phrase that a customer enters in the chat window to start a conversation with the bot. Once the conversation is started, the conversation follows the path you define. You can specify more than one trigger phrase for a topic. You can include punctuation in a trigger phrase, but it is best to use short phrases rather than long sentences.
Select Save topic to add the topic to the topics list.
Design the topic's conversation path
In the topic details for the topic you want to edit, select Go to authoring canvas.
Power Virtual Agents opens the topic in the authoring canvas and displays the topic's trigger phrases. The authoring canvas is where you define the conversation path between a customer and the bot.
For existing or system topics, a number of nodes will automatically be created. You can edit these nodes just as you can for other nodes.
When you create a new topic, a Trigger phrases node and a blank Message node are inserted for you.
You can add additional nodes by selecting the plus (+) icon on the line or branch between or after a node.
When adding a node, you can choose from five options. Each option has a specific node or nodes that will be inserted into the conversation path.
Ask a question
Call an action
Show a message
Go to another topic
End the conversation
Additionally, you can Branch based on a condition when inserting a node between existing nodes:
Ask a question:
To have the bot ask a question and get a response from the user, select + to add a node, and then Ask a question to add a new Question node.
Enter the question phrase in the first text box Ask a question.
You can choose from several options for the user’s response in the Identify field.
These options determine what sort of information the bot should be listening for in the user's response.
For example, they could be multiple choice options, a number, or a specific string.
To understand more about the different options in this flyout, see Using entities in a conversation.
Depending on what you choose in the Identify field, you can enter what options the user should have.
For example, if you select Multiple choice options, you can then enter the options the user can specify in the Options for user field. Each option is presented as a multiple choice button to the user, but users can also type in their answer in the bot.
The conversation editor creates separate paths in the conversation, depending on the customer's response. The conversation path leads the customer to the appropriate resolution for each user response. You can add additional nodes to create branching logic, and specify what the bot should respond with for each variable.
You can save the user response in a variable to be used later.
You can define synonyms for each option. This can help the bot to determine the correct option in case it isn't clear what the user's response should be mapped to.
Select the menu icon on the top of the Question node, and then select **Options for user.
Select the Synonyms icon for the option you want to add additional keywords to.
Add the keywords individually, and then once you're done adding keywords, select Done to return to the Authoring canvas.
Call an action
You can call Power Automate Flows by selecting Call an action.
Show a message
To specify a response from the bot, select + to add a node, and then Show a message to add a new Message node.
Enter what you want the bot to say in the text box. You can apply some basic formatting, such as bold, italics, and numbering.
You can also use variables that you have defined elsewhere in your bot conversation.
Go to another topic
To automatically have the bot move to a separate topic, select + to add a node, and then Go to another topic.
In the flyout menu, select the topic the bot should divert to. For example, you may wish to send the user to a specific topic about the closure of a store if they ask about store hours for that store.
End the conversation
When you end the conversation, you can have a survey appear that asks the user if their question or issue was answered or resolved correctly. This information is collected under the customer satisfaction analytics page.
You can also have the conversation handed over to a live agent if you're using a suitable customer service portal, such as Omnichannel for Customer Service.
At the end of a response that resolves the user's issue or answers the question, select End the conversation.
To end with a customer satisfaction survey, select End with survey.
Select Transfer to agent to insert a hand-off node that will link with your configured hand-off product. You can also enter a private message to the agent.
Branch based on a condition
To add branching logic based on variables, select + to add a node, and then Add a condition and Branch based on a condition.
Choose the variable you want to use to determine if the bot conversation should branch at this point. For example, if you have set up end-user authentication then you might want to specify a different message if the user is signed on (which may have happened earlier in the conversation).
Select the menu icon on the top of the node's title.
Test and publish your bot
You should test your bot when you make changes to your topics, to ensure everything is working as expected.
Once you've finished designing and testing your bot, you can consider publishing it to the web, mobile or native apps, or Azure Bot Framework channels.