How can I post the card in different channel?

Question

I want to post the card that contains text of message to different channel.

How can I do it? I used teams toolkit to use messaging extension.

Currently I used below code inside of handleTeamsMessagingExtensionSubmitAction to post the card but it doesn't work. error is Error posting card: RestError: Authorization has been denied for this request.

      const newConversation = await context.adapter.createConversationAsync(
          credentialsFactory.appId,
          channelId, // Use the extracted channel ID
          conversationReference.serviceUrl,
          "https://graph.microsoft.com/.default", 
          conversationParameters, // Pass the conversation parameters
          async (newContext) => {
            await newContext.sendActivity(message);
          }
        );

Answer 1

Hello @aya - Please refer this documentation:
https://learn.microsoft.com/en-us/microsoftteams/platform/bots/how-to/conversations/send-proactive-messages?tabs=dotnet