Known issues

Creating a migration environment seems to take a long time

Cloud Platform generally creates a migration environment within 10-15 minutes. However, this process might take up to an hour or more, depending on the size of the Drupal 7 site’s database and files, and network traffic at that time.

While Cloud Platform is generating my migration environment, I can’t access my other environments in the Cloud UI (progress icon)

This is an expected behavior. The migration environment needs to generate a new database on all of your environments, which stores the copy of the Drupal 7 database that will be used as the migration source. No other changes are being made to any of your environments. However, the UI does not return control until the migration environment is generated.