In a previous article we explained the syntax used to write Drupal migration. We also provided references of subfields and content entities’ properties including those provided by the Commerce module. This time we are going to list the configuration options of many migrate source plugins. For example, when importing from a JSON file you need to specify which data fetcher and parser to use. In the case of CSV migrations, the source plugin configuration changes depending on the presence of a headers row. Finding out which options are available might require some Drupal development knowledge. To make the process easier, in today’s article we are presenting a reference of available configuration options for migrate source plugins provided by Drupal core and some contributed modules.