Create and modify topics
In Power Virtual Agents, chatbot conversations are defined by topics. With topics, you can define and control the way that the conversation evolves.
Two types of topics are:
Trigger phrases - The chatbot needs to detect when the user asks a question that it knows how to respond to. The trigger phases are the phrases, keywords, and questions that the user is likely to enter. We recommend that you have 5 to 10 trigger phrases of common ways that your users would request help on the topic.
Conversation nodes - When the chatbot has a question, it needs to know how to handle the request. Conversation nodes define how the chatbot responds and if actions are required.
To view and edit topics in your chatbot, select Topics from the left column in the Power Virtual Agents editor. Many topics are automatically created for a chatbot:
The first four topics are sample user topics that demonstrate various ways of using topics to create conversations.
The remaining topics are system topics that are likely needed during a chatbot conversation.
Change the greeting system topic
System topics improve the usability of your chatbot with prebuilt topics to handle greeting, escalating, starting over, and saying goodbye. Editing these topics allows you to further personalize the chatbot for your users and organization.
The Greeting system topic provides a welcome message for the user. It's important to clearly define what the bot is meant to do, which will set expectations with the user.
Select the Greeting system topic to go to the authoring canvas. Notice that your authoring canvas includes nodes with trigger phrases and messages.
The authoring canvas is where you design the topic's conversation path by using conversation nodes. Conversation nodes determine how a chatbot responds and what actions it might have to take. The five different types of conversation nodes that you can add are described in the following table.
Conversation node Description Ask a question Have the chatbot ask a question and get a response from the user Add a condition Add branching logic Call an action Call Power Automate flows Show a message Have the chatbot respond to the user End with survey When the conversation ends, a survey appears
All chatbots start with the trigger phrases and a message conversation node.
If the text in the first message node doesn't match the purpose of your bot, you can change it. You can use the text editing controls in the message node to have the questions appear in italic font, or you can paste italic text into the message node since the node supports rich text. Change the text to the following example.
Hi! I'm the virtual agent for the Sales Project Team. For our upcoming sales events, I can help find the event contact for a particular country. Just type in questions like Who are the event contacts? or I need event contacts. to get started.
Save the settings by selecting Save.
Exit the topic authoring canvas by selecting Back.
Create a topic
For the Event Contacts chatbot, you want the chatbot to respond to the question, "Who are the event contacts?" From the Topics page in Power Virtual Agents in Teams:
Select + New topic.
To name this topic or add details about it, select Details in the menu at the top of the screen. Name your topic Event Contacts and press Save.
Enter the following Trigger phrases. Select Add between each one.
who are the event contacts
who to contact for the event
event contact information
In the Message node just below the Trigger Phrases node, enter the following information. Use the editing options in the text box to apply bold formatting to the country names. Remember that the node supports rich text formatting, so you can copy/paste bold text into it.
The event team contacts for North America are:
USA Lynne Robbins
Canada Lidia Holloway
Select the plus + symbol under the Message node to add another conversation node.
Select Redirect to another topic > End of Conversation. You can enter “end” in the Search pane to filter the list or scroll to find it.
The End of Conversation option is a system topic on how to end the conversation. This system topic asks the user about the accuracy of the results and to rate their experience. All system topics can be edited to customize the experience in the Topics screen.
In the Test bot pane, enter questions that contain one of the trigger phrases to observe how the bot responds. If the Test bot pane isn't appearing on the canvas, select Test bot from the menu at the top right of the screen.
Congratulations, you've created your first chatbot by using Power Virtual Agents for Teams. The next unit expands the chatbot to use inputs, variables, and conditions.