message-8.x-1.1/migrations/d7_message.yml

id: d7_message
label: Drupal 7 messages.
migration_tags:
  - Drupal 7
source:
  plugin: d7_message_source
process:
  mid: mid
  template: type
  created: timestamp
  uid: uid
  arguments: 
    plugin: d7_message_arguments
    source: 
      - arguments
  langcode: 
    plugin: default_value
    source: language
    default_value: "und"
destination:
  plugin: entity:message
migration_dependencies:
  required:
    - d7_message_template
    - d7_user