Landscape review
As part of the migration, you should consider reviewing your landscape. As well as the minimum Development (DEV), Quality Assurance System (QAS), and Production (PRD), it is quite likely that you have multiple additional non-production environments. These may include Sandbox, Training, Integration Testing, User Acceptance Testing, Project DEV, Project QAS and Pre-Production. Should all of these be migrated to Azure, or should only the key environments be migrated, and the rest created as required once the move to Azure is complete?
Once you have decided which environments need to be migrated, you will also need to decide whether to migrate each individual environment, or simply migrate production and copy back the production data into the other environments. This will depend to some extent on your current practices. You may already copy back production into QAS on a regular basis for testing purposes, but equally your development environment may contain...