In case you want to review all the batch messages (SMS or emails) you have sent, scheduled or cancelled you can check them in the Batching Dashboard. 

To get to the Batching Dashboard you can go the Messages Menu on your left Menu: 

Here you have the option to filter your messages by the Staff who created the message, status and type.
You can also see the dates related to the batch as well as the amount of contacts you sent it to and in case there were any fails you can see them as well. 

If you want to see more information, edit or cancel the messages in the batch you can double-click on the message, here you have more information about it:
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