Comment on emails in the drag-and-drop editor

You will learn

Use Comments in Klaviyo's drag-and-drop email editor to leave feedback directly on email blocks, reply to teammates, and track outstanding changes — all without leaving the editor. Faster review cycles mean fewer back-and-forth messages and quicker send times.

Before you begin

• Comments are available in the drag-and-drop Email Editor and in forms. They are not available in SMS or push notifications.
• The Content Creator, Campaign Coordinator, Manager, Administrator, and Owner roles can add, edit, delete, resolve, or react to comments. You can only edit or delete your own comments.
• Users in read-only mode (no template editing access) will not see the block-level comment button. Universal blocks do not have an Add comment action.
• Comments are tied to the template — anyone with access to the template can see all threads.
• Estimated time: 1–2 minutes to leave a comment; real-time updates mean teammates see it immediately.

Overview

Comments let your team collaborate directly on an email before it sends. You can:

• add a comment to a specific block in the email,
• reply to existing comment threads,
• edit or delete your own comments,
• resolve or unresolve a thread once feedback is addressed,
• react to comments with emoji,
• mention teammates with @ to notify them directly, and
• control how you're notified about new activity.

Comments are scoped to the template and update in real time — no refresh needed. The original email content is never changed by leaving a comment; comments are a layer on top of the design.

Set it up

Open the comments panel

1. Open a saved email template, campaign email, or flow email in the drag-and-drop editor.
2. In the top-right corner of the editor header, click Comments (the speech bubble icon).

The Comments panel opens on the right side of the canvas. It shows unresolved threads by default. To include resolved threads, click Filter and turn on Resolved.

Tip: Click the icon again at any time to collapse the panel without losing your place in the editor.

Add a comment to a block

1. Select the block you want to comment on. A quick-action toolbar appears beside the block.
2. Click the Add comment icon (speech bubble) in the toolbar.
3. A comment composer appears. Type your feedback — you can use bold, italic, strikethrough, and emoji.
4. To notify a specific teammate, type @ followed by their name and select them from the dropdown.
5. Click Comment (the up-arrow button) to post the comment. A small avatar indicator appears at the right edge of the block, showing that it has an active thread.

Tip: With the Comments panel open, select a block to view its existing threads. To start a new thread, click Add comment in the block’s toolbar.

Reply to a thread

1. In the Comments panel, click any existing thread to open the detail view.
2. Type your reply in the composer at the bottom of the thread.
3. Click Reply (the up-arrow button). Replies appear in chronological order below the original comment.

Resolve a thread

1. Open the thread in the Comments panel.
2. Hover over the original comment and click the checkmark icon (Mark as resolved). Resolved threads are hidden from the thread list unless Resolved is turned on in the filter. With resolved threads hidden, the block indicator disappears once all threads on that block are resolved.
3. To reopen a resolved thread, click Back to all comments, click Filter, and turn on Resolved. Open the thread, then hover over the original comment and click the checkmark icon (Mark as unresolved).

Tip: Any team member with write access can resolve or unresolve any thread — you don't have to be the original author.

Edit or delete your own comments

Hover over your comment and click More options (the 3-dot icon). Then choose an action:

• Select Edit to update the comment body, then click Save (the up-arrow button).
• Select Delete comment for a reply or Delete thread for the starting comment. Deleted comments show a Comment deleted placeholder while the thread remains visible. Deleting the starting comment does not delete other people’s replies.

React to a comment

1. Hover over any comment in a thread.
2. Click the emoji icon that appears.
3. Select a reaction. The emoji and reaction count appear below the comment. Hover over the reaction to see who reacted.
4. Click the same reaction again to remove it.

Manage notification settings

By default, Only mentions is selected. Notification settings lets you choose your email notification preference for comments across all content in your account.

1. In the Comments panel, click Notification settings (the gear icon) in the panel header.
2. Choose one of 3 settings:
   • All comments — email notifications for new comments and replies.
   • Only mentions — email notifications when someone @mentions you.
   • None — no comment notification emails. Comment activity still appears within Klaviyo.
3. Click Save.