On Desktop:

In the conversation list:

1. Hover over the conversation you'd like to delete.
2. Click Down Arrow ▼.
3. Click Delete.

You will be asked if you want to delete the conversation and, if it is a group conversation, you can choose to leave the group.

Deleting a conversation will clear your history on all your devices, and will remove it from your active list.

On mobile devices:

In the conversation list:

1. Swipe right on the conversation you'd like to delete.
2. Tap DELETE.

You will be asked if you want to delete the conversation and, if it is a group conversation, you can choose to leave the group.

Deleting a conversation will clear your history on all your devices, and will remove it from your active list.