diff --git a/lib/shared/dm-ops/process-dm-ops.js b/lib/shared/dm-ops/process-dm-ops.js
--- a/lib/shared/dm-ops/process-dm-ops.js
+++ b/lib/shared/dm-ops/process-dm-ops.js
@@ -5,7 +5,11 @@
 import { dmOpSpecs } from './dm-op-specs.js';
 import { useLoggedInUserInfo } from '../../hooks/account-hooks.js';
 import { useGetLatestMessageEdit } from '../../hooks/latest-message-edit.js';
-import type { DMOperation } from '../../types/dm-ops.js';
+import {
+  type DMOperation,
+  processDMOpsActionType,
+} from '../../types/dm-ops.js';
+import { useDispatch } from '../../utils/redux-utils.js';
 
 function useProcessDMOperation(): (dmOp: DMOperation) => Promise<void> {
   const fetchMessage = useGetLatestMessageEdit();
@@ -16,6 +20,7 @@
     [fetchMessage],
   );
 
+  const dispatch = useDispatch();
   const loggedInUserInfo = useLoggedInUserInfo();
   const viewerID = loggedInUserInfo?.id;
   return React.useCallback(
@@ -24,10 +29,18 @@
         console.log('ignored DMOperation because logged out');
         return;
       }
-      await dmOpSpecs[dmOp.type].processDMOperation(dmOp, viewerID, utilities);
-      // TODO: dispatch Redux action
+      const { rawMessageInfos, updateInfos } = await dmOpSpecs[
+        dmOp.type
+      ].processDMOperation(dmOp, viewerID, utilities);
+      dispatch({
+        type: processDMOpsActionType,
+        payload: {
+          rawMessageInfos,
+          updateInfos,
+        },
+      });
     },
-    [viewerID, utilities],
+    [dispatch, viewerID, utilities],
   );
 }
 
diff --git a/lib/types/dm-ops.js b/lib/types/dm-ops.js
--- a/lib/types/dm-ops.js
+++ b/lib/types/dm-ops.js
@@ -99,3 +99,10 @@
   rawMessageInfos: Array<RawMessageInfo>,
   updateInfos: Array<ClientUpdateInfo>,
 };
+
+export const processDMOpsActionType = 'PROCESS_DM_OPS';
+
+export type ProcessDMOpsPayload = {
+  +rawMessageInfos: $ReadOnlyArray<RawMessageInfo>,
+  +updateInfos: $ReadOnlyArray<ClientUpdateInfo>,
+};
diff --git a/lib/types/redux-types.js b/lib/types/redux-types.js
--- a/lib/types/redux-types.js
+++ b/lib/types/redux-types.js
@@ -40,6 +40,7 @@
   GetVersionActionPayload,
   LastCommunicatedPlatformDetails,
 } from './device-types.js';
+import type { ProcessDMOpsPayload } from './dm-ops.js';
 import type { DraftStore } from './draft-types.js';
 import type { EnabledApps, SupportedApps } from './enabled-apps.js';
 import type {
@@ -1561,6 +1562,10 @@
         +error: true,
         +payload: Error,
         +loadingInfo: LoadingInfo,
+      }
+    | {
+        +type: 'PROCESS_DM_OPS',
+        +payload: ProcessDMOpsPayload,
       },
 }>;