Overview
First steps
Frequently Asked Questions
Supported platforms and requirements
Installation
Migration walkthrough
How to
Migration types
Troubleshooting
- Office 365 connectivity
  - Application registration
  - Microsoft Graph API connection
- On-prem Exchange connectivity
Understanding the program
Monitoring and diagnostics
Licensing
Knowledge Base
Feedback

Troubleshooting

The most common errors that you might encounter when using CodeTwo Exchange Migration depend on your connection method. Use the links below to learn more.

Troubleshooting Office 365 connectivity (source)
Troubleshooting on-prem Exchange connectivity (source and target)

We recommend that you also read our Knowledge Base article about troubleshooting the migration software.

In the case you stumble upon a problem that is not described in the sections linked above, please see our Knowledge Base. If this still doesn't solve your issue, contact CodeTwo Support, providing software's diagnostic files.