How to: Connect your code app to Microsoft Copilot Studio agents

Microsoft Copilot Studio agents bring AI-powered capabilities to your code apps. This article shows you how to add the Microsoft Copilot Studio connector to your code app and invoke agents to process user input and return intelligent responses.

Prerequisites

• An initialized code app project
• A published Microsoft Copilot Studio agent in your environment
• Basic understanding of how to connect code apps to data

Ensure you have a Microsoft Copilot Studio connection

To connect your code app to a Copilot Studio agent, you need a Microsoft Copilot Studio connection in your environment. Check whether one already exists or create a new one.

Check for existing connections

To see if you already have a Microsoft Copilot Studio connection using the pac connection list command :

pac connection list

Look for a connection with the API ID /providers/Microsoft.PowerApps/apis/shared_microsoftcopilotstudio, and copy the connectionId value.

Create a new connection

If you don't have an existing connection, you must create one through the Power Apps maker portal UI. Follow the instructions in how to connect code apps to data and ensure that you copy the connectionId.

Add the Microsoft Copilot Studio connector

After creating a Microsoft Copilot Studio connection, use the PAC CLI pac code add-data-source command to add it to your code app:

pac code add-data-source -a "shared_microsoftcopilotstudio" -c <connectionId>

This command automatically:

• Updates your power.config.json file with the Copilot Studio data source
• Generates TypeScript model and service files in the src/generated folder

Publish and get your agent name

Before you can invoke an agent from your code app, you need to publish it and get its name.

Publish your agent

1. Open your agent in Copilot Studio
2. Select Publish to publish your agent

Get your agent name

1. In Copilot Studio, go to Channels.
2. Select Web app.
3. View the connection string to find your agent name.

The URL format is:

https://{id}.environment.api.powerplatform.com/copilotstudio/dataverse-backed/authenticated/bots/{agentName}/conversations?api-version=2022-03-01-preview

Example agent name: cr3e1_customerSupportAgent

Tip

Copy the agent name exactly as it appears in the URL. Agent names are case-sensitive and typically include a publisher prefix.

Invoke a Copilot Studio agent

With the connector added, you can call a Copilot Studio agent from your code app. The following steps show you how to import the generated service, send a message to the agent, and handle its response.

Use the ExecuteCopilotAsyncV2 action

Use the ExecuteCopilotAsyncV2 action to invoke agents from code apps. This action returns agent responses synchronously. It's the Execute Agent and wait action action included with the Microsoft Copilot Studio connector.

API path: /proactivecopilot/executeAsyncV2

Import the generated service

After adding the data source, import the generated TypeScript service:

import { CopilotStudioService } from './generated/services/CopilotStudioService';

Send a message to the agent

Use the ExecuteCopilotAsyncV2 method to send a message and await the agent's response:

const response = await CopilotStudioService.ExecuteCopilotAsyncV2({
  message: "What is the status of my order?",
  notificationUrl: "https://notificationurlplaceholder",
  agentName: "cr3e1_customerSupportAgent"
});

Request parameters

The ExecuteCopilotAsyncV2 method accepts the following parameters:

Parameter	Required	Type	Description
message	Yes	string	The prompt or data to send to the agent. Can be a JSON string for structured data.
notificationUrl	Yes	string	Placeholder URL (use "https://notificationurlplaceholder"). The API requires this URL but doesn't use it in synchronous mode.
agentName	Yes	string	The name of your published Copilot Studio agent.

Response structure

The response contains the following properties:

Property	Type	Description
responses	string[]	Array of response strings from the agent
conversationId	string	The conversation ID for tracking
lastResponse	string	The most recent response from the agent
completed	boolean	Whether the agent finished processing

Example: Get agent response

const response = await CopilotStudioService.ExecuteCopilotAsyncV2({
  message: "Summarize the latest product trends",
  notificationUrl: "https://notificationurlplaceholder",
  agentName: "cr3e1_trendAnalyzer"
});

if (response.data.completed) {
  const agentResponse = response.data.lastResponse;
  console.log("Agent response:", agentResponse);
}

Example: Parse JSON responses

Agents often return responses as JSON strings. Parse the responses to extract specific data:

const response = await CopilotStudioService.ExecuteCopilotAsyncV2({
  message: JSON.stringify({ query: "monthly sales" }),
  notificationUrl: "https://notificationurlplaceholder",
  agentName: "cr3e1_dataAnalyzer"
});

if (response.data.responses && response.data.responses.length > 0) {
  // Parse the JSON response
  const parsedData = JSON.parse(response.data.responses[0]);
  const summary = parsedData.summary;
  const metrics = parsedData.metrics;

  console.log("Summary:", summary);
  console.log("Metrics:", metrics);
}

Troubleshooting

If you encounter issues connecting to or invoking a Copilot Studio agent, the following solutions address the most common problems.

Agent doesn't return a response

Solution: Make sure you're using the ExecuteCopilotAsyncV2 operation (/proactivecopilot/executeAsyncV2). Other endpoints have known limitations:

• ExecuteCopilot (/execute) - Only returns ConversationId, not the response (fire-and-forget).
• ExecuteCopilotAsync (/executeAsync) - Might return 502 "Cannot read server response" errors.

Property casing errors in response

Solution: Response property casing might vary between implementations. Check for all variations:

• conversationId
• ConversationId
• conversationID

Use optional chaining or check for multiple casing variations.

const convId = response.data.conversationId ??
               response.data.ConversationId ??
               response.data.conversationID;

Agent returns empty or unexpected responses

Solution: Verify that:

1. You published your agent in Copilot Studio.
2. The agent name is correct and matches the published agent.
3. The message format matches what your agent expects.
4. Your agent has topics configured to handle the input.

See also

• Connect your code app to data
• Microsoft Copilot Studio documentation
• Power Platform connectors reference