Debugging

Owned by Johannes Sebastian Nielsen
Last updated: about 2 hours ago
1 min read

Description

Use these methods to debug errors that have stopped Mobile Documents from being processed, including for your custom development.

Use the debugger to:

  • View the erroring code and navigate the call stack

  • Set breakpoints before the error occurs

This page only provides an overview. Please refer to the MS documentation.

Prerequisites

Debugging BC Online requires a Sandbox. Copy your Production environment to a Sandbox as needed.

 

Attach and Debug (Re-process existing requests)

  • Use this method to re-process existing erroneous Mobile Documents and view the erroring code

  • Attaching to the current WebClient session

Steps

  1. Open Business Central Online as a Sandbox environment

  2. Select ❔ in the top right-hand corner

    1. Select "Help & Support"

    2. Select "Attach debugger to this session"

  3. Start “Regular Debugging” in Visual Studio Code

  4. Use the Mobile Document Queue to Process the document with the error. See Debugging

 

Attach and Debug-Next Webservice (Catch requests before processing)

  • Use this method when you need to debug before a Commit happens.

This requires a mobile device connected to the sandbox.
The Customer Test folder should point to the Sandbox. Then you can drag a device to the Test folder.

Steps

  1. Perform the steps from Attach and Debug section

  2. Modify the launch.json file:

    1. Delete sessionId

    2. Change breakOnNext to "WebServiceClient"

  3. Start debugging

  4. Wait for the console message Debugger will attach to the next session of type WebServiceClient

  5. Trigger the error from the mobile device

Usernames must match!
You must Log in to Mobile WMS, with the same Username as VS Code Publish/attach to Sandbox