Merging

Merge conversations to combine related threads into one. All messages, comments, labels, and assignees transfer to the target conversation.

How to merge conversations

Drag and drop

Drag a conversation from the list and drop it onto another conversation. The dragged conversation merges into the one you drop it on.

Using a conversation link

1. Right-click the conversation you want to merge into another

2. Select Copy Link

3. Open the target conversation (where you want messages to end up)

4. Press ⌘/Ctrl + Shift + G or right-click and select Merge...

5. Paste the conversation link

6. Optionally set a new subject for the merged conversation

7. Click Merge

Using a copied conversation

1. Right-click the conversation you want to merge and select Copy conversation

2. Right-click the target conversation

3. Select Merge copied conversation...

4. Confirm the merge

Batch merging

1. Select multiple conversations by holding ⌘/Ctrl and clicking each one

2. Right-click the selection

3. Select Merge

4. All selected conversations merge into the first one

Merging cannot be undone. The source conversation is permanently combined into the target.

Automatic merging with rules

Use Rules to automatically merge conversations when specific conditions are met. The Merge in conversation action combines incoming messages into existing conversations based on your criteria.

What gets merged

When you merge conversations, the target conversation receives:

Data	How it's handled
Messages and comments	Combined chronologically
Labels	Combined from both conversations
Assignees	Combined from both conversations
Tasks	Moved to the target conversation
Subject	You can set a new subject, or keep the target's subject
Description	Combined if both have descriptions

Limitations

Merging is not available when:

• The conversation is a chat room

• You are a guest in the conversation

• The conversations are from different organizations

• Both conversations have 500+ messages each

After merging

The source conversation disappears and its messages appear in the target conversation. A merge event shows in the conversation history indicating which conversation was merged.

If you were viewing the source conversation, you're automatically navigated to the target.

Undoing a merge

There's no one-click undo for merging, but you can move emails out of the merged conversation:

1. Open the merged conversation

2. Click the More menu (three dots) on an email you want to separate

3. Select Move email to... → New private conversation or New shared conversation

Each email you move ends up in its own conversation. If needed, you can then merge those single-email conversations together to recreate the original thread.

Comments cannot be moved out of a conversation. Only emails can be separated this way.