Click on me to chat with me
Skip to content

Customize Main Chat Flow

Design page

As shown above, an AI chatbot created based on a template already contains a default chat flow, which consists of one or more topic blocks shown on the left side of the screen. Each topic block often represents a Juji built-in mini dialog that enables a chatbot to automatically carry on a multi-turn conversation with users.

A chat flow is often defined for a chatbot to achieve specific goals. For example, a typical AI sales helper chatbot is associated with a chat flow that asks a user several questions and then use the gathered information to offer personalized services, such as making product recommendations.

Since each chatbot is made for its own missions, you can easily customize a chatbot by altering the chat flow or any topic blocks in the flow.

Add a Topic

One can add a topic to an existing chat flow in one of the two ways:

  • Click on the round green + button below the Welcome card to add a topic at the beginning of a chat flow. You can also use the same green + button above the Wrap-up card to add a topic at the end of a chat flow.

  • Mouse hover any topic card (e.g., How are you doing?) and then select the round green + button to add a topic after the current topic card.

add a
topic button

add a
topic type

As shown above, Juji currently supports two types of topics:

Chatbot Request

This is for a chatbot to ask a user a question or perform a certain action. The chatbot must wait for a user to respond to such a request before moving the conversation forward. Currently, Juji supports five types of chatbot request:

add a
request topic - select a request type

Chatbot Message

This is for a chatbot to send a message to a user without waiting for a user's response. Currently, Juji supports three types of chatbot message.

add a
message topic - select a message type

IMPORTANT TIP If you intend to have your chatbot wait for a user input and respond to it before moving on, make sure you choose Make a Request. Otherwise, your chatbot simply ignores any user input even if the message is worded like a question. As the example shown below, T6 will not wait for a user's input but T5 will. Note the chat icon appearing on T5, indicating T5 is a "true" question.

Pseudo question


To decide which chatbot request to use, please check out this design tip.

Edit a Topic

Once a topic is added, one can then edit the topic in three sections:

Chatbot Content

You can customize the chatbot message(s) that users will see during a chat. Please refer to design best practices for defining the content of a topic.

topic content

Here we use a set of examples to show how to define the content of different topics and how the content would appear in a chat on the web or Facebook Messenger.

Plain Text Chatbot Message

This is the simplest chatbot message that contains only plain text.

  • Add a function Use the green function button (fx) below the text bubble to add a function, such as (user-first-name) to personalize the chatbot message.

  • Add a link Use the green link button to add a URL (bio).

  • Add a paraphrase Use the green + button on the right of the text bubble to add paraphrases of the message (see the screenshot below). The paraphrases will be selected by your chatbot randomly to send during a chat. See best practices for good uses of paraphrases.

customize a plain message

You can always use the green eye icon located at the top-right corner of the text bubble to preview the above message in a chat:

a text message

FB Media Card

For a FB Messenger chatbot, one can define one or more FB Media cards to display a combination of text, image, and URL links. As shown below, each card contains:

  • Title (required field)

  • Subtitle (optional)

  • Image (optional image URL)

  • URL Buttons (up to 3 links per card)

Facebook Media Card

Currently one can define up to three FB Media cards. In a Facebook Messenger window, these cards will show up in a carousel.

FB media card carousel

Note that FB Media cards will not show up if the chatbot is deployed on a website.

Web Media Card

For a website chatbot, one can also define a message with a combination of text, image, and URL. As shown below, the web media card contains:

  • Text Message (required)
  • Hyper Link (optional)
  • Image (optional image URL)

add web

Below is the preview of a web media card with an image:

preview web media

Free-text Request

Perhaps the most used request for an AI chatbot is to pose free-text, open-ended questions during a chat. Such a question can elicit diverse and detailed user responses to gather in-depth insights and better understand users' needs and wants.

As shown below, a free-text request includes the following:

  • Label Typically, a label is the short form ("stem") of a chatbot request. Although it automatically takes the form of the main message, it is good to give a sensible label as it is also used for multiple purposes (see best practices).

  • Main Message (required) This is the question that users will see in a chat. Instead of asking a question directly, a good message should also contain the context or motivation of the asking.

  • Re-asking Messages (optional) During a chat, a user may not always respond to a chatbot question. In such a case, a chatbot may want to repeat the question. One can add (green +) paraphrases of a request and indicate whether such a paraphrase can be used to re-ask the question by checking the Re-asking Message box.

See best practices on how to phrase free-text questions in a conversation.

add a
free-text question

Choice Request

One of the popular chatbot request is to ask a user to make a choice. Below is an example of a single choice request, also known as radio button question, where a user can select only one choice.

As shown below, a single choice question contains:

  • Main Message (required)

  • Option Items (at least one item is required)

add a
single-answer multiple choice question

In addition to adding regular option items, Other option can be added to let a user specify additional text. One can also indicate whether to treat all the option items as numbers. Numeric choices can be used to define chatbot conditions involving numeric operations, such as >= and <. See examples below on defining chatbot conditions.

add a
single-answer multiple choice question with numeric items

Depending on where the chatbot is deployed, the look of a choice question may be different.

A choice question displayed in a web-based chatbot:

preview a web-baed choice question

A choice question displayed in a Facebook Messenger chatbot:

preview a Facebook choice question in Facebook Messenger

In Facebook Messenger, a user may enter a text message instead of clicking on a choice. In such a case, the chatbot will handle the user text input first. Since a Juji AI chatbot tracks a conversation context, it will repeat the question, if the choice question is a required one.

Below is an example chat where the user asks a question intead of making a color choice. The chatbot answers the user question and then repeats the choice question.

Handling user digression during Facebook choice question

Facebook Choice

Semantically, a Facebook choice question is essentially the same as a regular choice question except that it takes the form of Facebook buttons in a Facebook Messenger chatbot. This type of request will not be displayed in a web-based chatbot.

As shown below, a Facebook choice question includes:

  • Title (required) This is the main asking message.
  • Subtitle (optional) This adds more information to the question.
  • Button (at least one button is required)
  • Image (optional) An image URL can be added with the question.

Facebook choice buttons

Here is how a Facebook choice looks like in a Facebook Messenger chatbot:

preview Facebook choice buttons

Facebook Email

This special request enables a chatbot to gather opt-in user email in a Facebook Messenger chatbot. A user must click on the displayed email to confirm (opt-in) his/her email. A user can also text an alternative email. To allow users to skip this question, set this question not required in the topic settings.

add a
Facebook email requestion

Chatbot Actions

You can also customize chatbot behavior based on user responses. The green "Customization" button shown below can be used to add a group of chatbot actions under one condition (trigger). Refer to the design best practices for defining specific conditions and corresponding custom chatbot actions.

chatbot actions

In a natural conversation, different user behavior should drive different chatbot actions. Juji supports the customization of chatbot behavior in many ways. This section will use a set of concrete examples to show how to easily customize a chatbot behavior based on application needs.

Use Juji Built-in Dialog

Unlike other chatbot platforms, Juji has a dialog library that contains thousands of built-in mini conversations. When you add a topic that is a free-text request, Juji automatically uses the request label to search its dialog library and retrieve a matched mini conversation for this request.

For example, if you enter Have you ever worked at a restaurant? as the request label, Juji will auto retrieve the matched mini conversation `This is to ask a user yes/no question' (see below)

an example label

an example label in a topic use

In this case, the built-in dialog will automatically process a user's positive or negative responses and enable you use the auto-detected expressions to direct the user to different paths. In other words, you don't need to worry about how to define triggers to catch highly diverse users' positive or negative expressions.

In contrast, if the request label is What's your favorite fruit, the retrieved mini conversation would be Ask a user about his/her favorite thing (see below)

example label

example topic associated with a label

In case that Juji-retrieved mini conversation is not what you want to use, you can always find a different built-in dialog (click on the green search icon as shown above). Below is a screenshot showing the Juji dialog library, where you can browse and use keywords to search for a suitable, built-in dialog to use.

search a

A built-in Juji dialog is very powerful as it helps handle diverse user behavior automatically. For example, if you wish to collect users' contact information, the built-in dialog Ask a user contact info automatically handles various cases, such as user already opt-in contact information or potentially erroneous input.

user contact info

Use Juji Built-in Attributes

In certain built-in dialogs, Juji automatically creates a set of built-in attributes to capture processed user input. For example, if a mini dialog talks about the weight of something (e.g., How much does your dog weigh), Juji automatically parses user input to the question and stores the parsed user input into two attributes: weight-amount and weight-unit.

Click on the green attribute icon to view the attributes associated with a built-in dialog (see below).

view system attributes within a topic

You can also edit the attribute names to avoid potential conflicts. For example, your chatbot asks two questions regarding weight, one for dog and the other for cat. You would want to change the default attribute names to dog-weight-amount and cat-weight-amount, respectively to distinguish user answers to these two questions.

Pin a Matched Dialog

As described above, Juji uses the request label you entered to search and find a matched built-in dialog. This means that changing your request label will automatically trigger Juji to find a different matched dialog. To avoid such situations, you can use the green pin icon to pin a found dialog (see above). This means that changes in your request label will no longer trigger Juji to search and change the matched dialog automatically.

Besides reusing a Juji built-in dialog, you can always customize a built-in dialog. Next we use a set of examples to show how to customize built-in dialogs.

As shown below, each customization block includes two parts:

  • IF block defines the condition (also known as trigger) under which the custom chatbot actions will be performed.

  • THEN block contains one or more custom chatbot actions.

design custom chatbot actions

Customize IF Conditions

Since a free-text chatbot request may elicit unanticipated, diverse user behavior, currently Juji supports five types of IF conditions to capture user behavior:

  • is-similar-to If a user input is similar to one or more sentences or phrases. One can also specify the similarity threshold. By default, the threshold is set at 80%.

add a is-similar-to

  • contains-keywords If a user input contains one or more keywords. Unlike is-similar-to condition, this condition requires a precise match with the stem of at least one specified keyword.

add a contains-keywords trigger

  • contains-sentiment If a user input contains a positive or negative sentiment.

add a contains-sentiment trigger

add a matches

  • is-anything-else If a user input matches anything else. This is basically the default condition.

use a default condition

One can check on the box next to the STORE MATCHED INPUT to store the matched input into a custom attribute.

As shown below, if a user input contains keywords, such as milk, egg, or cheese, a custom attribute like-protein can be created to store the matched keyword for each user.

add custom

Custom attributes can be used for many purposes, such as customizing a chatbot message (see below) or indexing audience information (e.g., showing all users who like-protein).

Note that for a choice request, since a user's input must be one of the choices, there is just one type of IF condition, the choice made by the user.


To decide which type of trigger (chatbot condition) to use, please check out this design tip.

Customize THEN Actions

As shown below, when a IF condition is met, one or more custom chatbot actions can be defined:

customize chatbot actions overview

customize chatbot actions overview

  • Quick Acknowledgement This defines a simple text message that a chatbot can use to acknowledge a user. This simply sends a message without waiting for a user's response. This means that any follow-up question expression in this message won't be able to elicit any user response (unless it is a reflective question without requiring any user response). If you wish to ask a follow-up question, add a Follow-up Requestas described below.

  • Extended Reply This defines a full chatbot message, including image and paraphrases, that a chatbot can use to make an extended reply. This defines a full topic - a message topic.

  • Follow-up Request This defines a chatbot request that allows the chatbot to ask a follow-up question. This defines a full topic - a request topic.

Topic Settings

You can also customize one or more topic-specific parameters, such as whether a "request" topic requires user response and the length of user responses. Please refer to best practices to fine tune these parameters.

design topic settings

Welcome Topic

No matter whether you use a blank template or a task-specific Juji template to create a chatbot, every chatbot comes with two pre-built topics, the Welcome topic that starts a conversation and the Wrap-up topic that ends a conversation.

To start a good or warm conversation, you may wish to edit the default messages in the Welcome topic to suit your context. Please refer to this recorded webinar to see how to phrase custom welcome messages for different use cases.

Suspend Current Chat

For various reasons, you may want to pause a chatbot before letting it interact with your audience again. You can do so easily in the Welcome topic:

  • Click on the Welcome card

  • Click on the slider under the welcome message (on the right panel) to suspend a chat. See the screenshot below.

  • Edit the welcome message accordingly to inform users about the suspension/pause.

Suspend chat

IMPORTANT TIP If your chatbot is deployed via a web URL, you may also want to change the greeting message on the web cover page to inform future users about the pause/suspension.

Wrap-up Topic

Another Juji built-in topic for every chatbot is the Wrap-up topic. One may want to customize a chatbot's ending behavior. For example, a chatbot that conducts an interview or conversational survey may want to end the conversation once the interview or survey is done. In contrast, a customer support chatbot must hang around all the time to serve customers.

To customize the ending behavior, click on the Wrap-up topic, the last topic in the left topic panel.

Wrapup topic to end a chat

Then click on the text bubble or the pencil icon to edit the topic:

Option 1: Make a chatbot stick around

customize end of chat: option 1

Option 2: End a chatbot

customize end of chat: option 2

If you decide to end a conversation, you also have the option to redirect the ending to a custom URL of yours. Just enter the URL where you want the ending will be.

Delete a Topic

To delete a topic, mouse hover the corresponding topic card listed in the left topic panel. Then click on the red trash can icon to delete the topic. A deletion is permanent and cannot be undone.

delete a

Clone a Topic

To clone a topic, mouse over the corresponding topic card listed in the left topic panel. Then click on the green clone icon to clone the topic. The cloned topic will retain all behavior of the original topic.

a topic

View Topic Relationship

Although the chat flow is presented a list of topics, but the inter-connected topics actually form a graph. When the complexity of the chat flow grows, the need to see the relationship among topics grows also. Juji Studio provides two convenient tools for users to visualize and examine the topic graph. The two icons on top of the topic list leads to a text and a graph view of the topic graph.

Chatflow topic icons

View Topic Text List

Topic text list icon

Click on the Topic Text List icon, you will see all the topics represented in a textual format in a new browser tab. You can copy or download these text for detailed analysis.

Topic text list view

View Topic Graph

Topic graph icon

Click on the Topic Graph icon, you will see all the topics represented in a graph visualization in a new browser tab. Each node in the graph represents a topic. You can drag the nodes around, pan and zoom in/out the graph. Click Reset button to change the graph layout. Click Center button to re-center the viewpoint. Click Legend button to toggle on/off the legend of the graph. You can also change how long you want the node label to be by choosing a Label Size.

Topic graph

When you click on one of the graph nodes, not only the node turns yellow, the corresponding topic editor in the design view is also selected and open. So you can use the topic graph as a convenient topic navigator for editing topics.

Here is how to do it: first drag out the topic graph tab as a window, then lay this window side by side with the design view, or lay it top and down with the design view. The idea is to show both windows at the same time, so you can use the topic graph to navigate between topics for editing.

View topic graph and topic editor at the same time

What's Next

Once a chatbot is ready, you can deploy it onto a website or a Facebook page. Please check out Chatbot Deployment to deploy your AI chatbot. If you wish to further customize your chatbot, such as its capabilities to handle user questions, please refer to Customize QA. If you wish to customize the chatbot's persona or other settings, please refer to Customize Chatbot Persona.