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This repository was archived by the owner on Jan 5, 2026. It is now read-only.
This repository was archived by the owner on Jan 5, 2026. It is now read-only.

System Exception POST to Bot failed: POST to the bot's endpoint failed with HTTP status 500 POST to the bot's endpoint failed with HTTP status 500 #4822

@CalvinFengDatacom

Description

@CalvinFengDatacom

I think I got the same issue with @hardikp81 #3199 while user send a message to bot, then Web App throws an exception which indicates an error occurred in the response Message from Bot endpoint: https://botname.azurewebsites.net/api/messages

Bot Info

  • SDK Platform: C#
  • SDK Version: 3.15.2.2
  • Active Channels: Direct Line
  • Deployment Environment: Azure App Service

Issue Description

Bot service throws the exception when user send the message to bot. Microsoft.Bot.ChannelConnector fails to send the message to Bot. Please find the exception below:

Microsoft.Bot.Schema.BotException:
at Microsoft.Bot.ChannelConnector.BotAPI+d__30.MoveNext (Microsoft.Bot.ChannelConnector, Version=3.2.2.1, Culture=neutral, PublicKeyToken=null)
Inner exception System.Exception handled at Microsoft.Bot.ChannelConnector.BotAPI+d__30.MoveNext:
at Microsoft.Bot.ChannelConnector.BotAPI+d__30.MoveNext (Microsoft.Bot.ChannelConnector, Version=3.2.2.1, Culture=neutral, PublicKeyToken=null)

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