diff --git a/lib/shared/messages/create-sidebar-message-spec.js b/lib/shared/messages/create-sidebar-message-spec.js
--- a/lib/shared/messages/create-sidebar-message-spec.js
+++ b/lib/shared/messages/create-sidebar-message-spec.js
@@ -7,7 +7,6 @@
   type CreateMessageInfoParams,
   type MessageSpec,
 } from './message-spec.js';
-import { assertSingleMessageInfo } from './utils.js';
 import type { PlatformDetails } from '../../types/device-types.js';
 import { messageTypes } from '../../types/message-types.js';
 import type {
@@ -153,7 +152,6 @@
     rawMessageInfo: RawCreateSidebarMessageInfo,
     platformDetails: ?PlatformDetails,
   ): RawCreateSidebarMessageInfo | RawUnsupportedMessageInfo {
-    // TODO determine min code version
     if (hasMinCodeVersion(platformDetails, 75)) {
       return rawMessageInfo;
     }
@@ -180,18 +178,18 @@
     messageInfos: $ReadOnlyArray<MessageInfo>,
     threadInfo: ThreadInfo,
   ): Promise<NotifTexts> {
-    const messageInfo = assertSingleMessageInfo(messageInfos);
+    const firstMessageInfo = messageInfos[0];
     invariant(
-      messageInfo.type === messageTypes.CREATE_SIDEBAR,
-      'messageInfo should be messageTypes.CREATE_SIDEBAR!',
+      firstMessageInfo.type === messageTypes.CREATE_SIDEBAR,
+      'firstMessageInfo should be messageTypes.CREATE_SIDEBAR!',
     );
 
-    const creator = ET.user({ userInfo: messageInfo.creator });
+    const creator = ET.user({ userInfo: firstMessageInfo.creator });
     const prefix = ET`${creator}`;
 
-    const initialName = messageInfo.initialThreadState.name;
+    const initialName = firstMessageInfo.initialThreadState.name;
     const sourceMessageAuthorPossessive = ET.user({
-      userInfo: messageInfo.sourceMessageAuthor,
+      userInfo: firstMessageInfo.sourceMessageAuthor,
       possessive: true,
     });