Compare calendar migration options
If you want to migrate calendar data from your legacy system, you can migrate using one of the following options:
- A Google migration tool. There are a variety of tools available. The tools you use depend on your legacy environment (where you're migrating data from) and whether you want to migrate calendar data with other types of data.
- A third-party tool. You can also check out tools in the Google Apps Marketplace to review migration solutions provided by third parties.