simplenews subscribers migration ok, simplenews admin ok

config/sync/migrate_plus.migration.d7_simplenews_subscribers.yml

@@ -0,0 +1,49 @@
+uuid: e96db13c-0d24-47c0-a7e7-8c5d60803cdc
+langcode: en
+status: true
+dependencies: {  }
+_core:
+  default_config_hash: b2MXWpch207TVNeTDT9MV-JYlCyRlkj64EIzLDHuwWo
+id: d7_simplenews_subscribers
+class: null
+field_plugin_method: null
+cck_plugin_method: null
+migration_tags:
+  - 'Drupal 7'
+  - Content
+  - Materio
+migration_group: d7_materio
+label: 'Simplenews subscribers'
+source:
+  plugin: simplenews_subscriber
+process:
+  id: snid
+  status: activated
+  mail: mail
+  uid:
+    plugin: migration
+    migration: d7_users
+    source: uid
+  langcode: language
+  changes: changes
+  created: created
+  subscriptions:
+    plugin: iterator
+    source: subscriptions
+    process:
+      target_id:
+        plugin: static_map
+        source: newsletter_id
+        map:
+          6585: test
+          6374: ze_daily_materio_
+          6274: materio_newsletter
+          7881: companies
+      status: status
+      timestamp: timestamp
+      source: source
+destination:
+  plugin: 'entity:simplenews_subscriber'
+migration_dependencies:
+  required:
+    - d7_users