diff --git a/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.dynamic.md b/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.dynamic.md
new file mode 100644
index 0000000000000..0efab7bebfbe5
--- /dev/null
+++ b/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.dynamic.md
@@ -0,0 +1,13 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-server](./kibana-plugin-server.md) &gt; [SavedObjectsTypeMappingDefinition](./kibana-plugin-server.savedobjectstypemappingdefinition.md) &gt; [dynamic](./kibana-plugin-server.savedobjectstypemappingdefinition.dynamic.md)
+
+## SavedObjectsTypeMappingDefinition.dynamic property
+
+The dynamic property of the mapping. either `false` or 'strict'. Defaults to strict
+
+<b>Signature:</b>
+
+```typescript
+dynamic?: false | 'strict';
+```
diff --git a/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.md b/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.md
index 99983d3a9f02b..8c1a279894ffd 100644
--- a/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.md
+++ b/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.md
@@ -41,5 +41,6 @@ const typeDefinition: SavedObjectsTypeMappingDefinition = {
 
 |  Property | Type | Description |
 |  --- | --- | --- |
-|  [properties](./kibana-plugin-server.savedobjectstypemappingdefinition.properties.md) | <code>SavedObjectsMappingProperties</code> |  |
+|  [dynamic](./kibana-plugin-server.savedobjectstypemappingdefinition.dynamic.md) | <code>false &#124; 'strict'</code> | The dynamic property of the mapping. either <code>false</code> or 'strict'. Defaults to strict |
+|  [properties](./kibana-plugin-server.savedobjectstypemappingdefinition.properties.md) | <code>SavedObjectsMappingProperties</code> | The underlying properties of the type mapping |
 
diff --git a/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.properties.md b/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.properties.md
index 555870c3fdd7d..f6be5214ec6d9 100644
--- a/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.properties.md
+++ b/docs/development/core/server/kibana-plugin-server.savedobjectstypemappingdefinition.properties.md
@@ -4,6 +4,8 @@
 
 ## SavedObjectsTypeMappingDefinition.properties property
 
+The underlying properties of the type mapping
+
 <b>Signature:</b>
 
 ```typescript
diff --git a/src/core/server/saved_objects/mappings/types.ts b/src/core/server/saved_objects/mappings/types.ts
index 578fdcea3718e..bc556c0429981 100644
--- a/src/core/server/saved_objects/mappings/types.ts
+++ b/src/core/server/saved_objects/mappings/types.ts
@@ -45,6 +45,9 @@
  * @public
  */
 export interface SavedObjectsTypeMappingDefinition {
+  /** The dynamic property of the mapping. either `false` or 'strict'. Defaults to strict */
+  dynamic?: false | 'strict';
+  /** The underlying properties of the type mapping */
   properties: SavedObjectsMappingProperties;
 }
 
diff --git a/src/core/server/saved_objects/migrations/core/__snapshots__/build_active_mappings.test.ts.snap b/src/core/server/saved_objects/migrations/core/__snapshots__/build_active_mappings.test.ts.snap
index e82fbfc85dfa0..68f90ea70a0c6 100644
--- a/src/core/server/saved_objects/migrations/core/__snapshots__/build_active_mappings.test.ts.snap
+++ b/src/core/server/saved_objects/migrations/core/__snapshots__/build_active_mappings.test.ts.snap
@@ -60,3 +60,82 @@ Object {
   },
 }
 `;
+
+exports[`buildActiveMappings handles the \`dynamic\` property of types 1`] = `
+Object {
+  "_meta": Object {
+    "migrationMappingPropertyHashes": Object {
+      "config": "87aca8fdb053154f11383fce3dbf3edf",
+      "firstType": "635418ab953d81d93f1190b70a8d3f57",
+      "migrationVersion": "4a1746014a75ade3a714e1db5763276f",
+      "namespace": "2f4316de49999235636386fe51dc06c1",
+      "references": "7997cf5a56cc02bdc9c93361bde732b0",
+      "secondType": "72d57924f415fbadb3ee293b67d233ab",
+      "thirdType": "510f1f0adb69830cf8a1c5ce2923ed82",
+      "type": "2f4316de49999235636386fe51dc06c1",
+      "updated_at": "00da57df13e94e9d98437d13ace4bfe0",
+    },
+  },
+  "dynamic": "strict",
+  "properties": Object {
+    "config": Object {
+      "dynamic": "true",
+      "properties": Object {
+        "buildNum": Object {
+          "type": "keyword",
+        },
+      },
+    },
+    "firstType": Object {
+      "dynamic": "strict",
+      "properties": Object {
+        "field": Object {
+          "type": "keyword",
+        },
+      },
+    },
+    "migrationVersion": Object {
+      "dynamic": "true",
+      "type": "object",
+    },
+    "namespace": Object {
+      "type": "keyword",
+    },
+    "references": Object {
+      "properties": Object {
+        "id": Object {
+          "type": "keyword",
+        },
+        "name": Object {
+          "type": "keyword",
+        },
+        "type": Object {
+          "type": "keyword",
+        },
+      },
+      "type": "nested",
+    },
+    "secondType": Object {
+      "dynamic": false,
+      "properties": Object {
+        "field": Object {
+          "type": "long",
+        },
+      },
+    },
+    "thirdType": Object {
+      "properties": Object {
+        "field": Object {
+          "type": "text",
+        },
+      },
+    },
+    "type": Object {
+      "type": "keyword",
+    },
+    "updated_at": Object {
+      "type": "date",
+    },
+  },
+}
+`;
diff --git a/src/core/server/saved_objects/migrations/core/build_active_mappings.test.ts b/src/core/server/saved_objects/migrations/core/build_active_mappings.test.ts
index 9d220cfdf94b7..33e1a395e64a2 100644
--- a/src/core/server/saved_objects/migrations/core/build_active_mappings.test.ts
+++ b/src/core/server/saved_objects/migrations/core/build_active_mappings.test.ts
@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { IndexMapping } from './../../mappings';
+import { IndexMapping, SavedObjectsTypeMappingDefinitions } from './../../mappings';
 import { buildActiveMappings, diffMappings } from './build_active_mappings';
 
 describe('buildActiveMappings', () => {
@@ -49,6 +49,23 @@ describe('buildActiveMappings', () => {
     );
   });
 
+  test('handles the `dynamic` property of types', () => {
+    const typeMappings: SavedObjectsTypeMappingDefinitions = {
+      firstType: {
+        dynamic: 'strict',
+        properties: { field: { type: 'keyword' } },
+      },
+      secondType: {
+        dynamic: false,
+        properties: { field: { type: 'long' } },
+      },
+      thirdType: {
+        properties: { field: { type: 'text' } },
+      },
+    };
+    expect(buildActiveMappings(typeMappings)).toMatchSnapshot();
+  });
+
   test('generated hashes are stable', () => {
     const properties = {
       aaa: { type: 'keyword', fields: { a: { type: 'keyword' }, b: { type: 'text' } } },
diff --git a/src/core/server/server.api.md b/src/core/server/server.api.md
index 8f4feb7169651..42bc1ce214b19 100644
--- a/src/core/server/server.api.md
+++ b/src/core/server/server.api.md
@@ -2058,7 +2058,7 @@ export interface SavedObjectsType {
 
 // @public
 export interface SavedObjectsTypeMappingDefinition {
-    // (undocumented)
+    dynamic?: false | 'strict';
     properties: SavedObjectsMappingProperties;
 }