Accessible under the Business menu via Review Batches.
To authorise/ sign a batch click on the View/Sign/Delete button and select Sign Batch.
You will then be promoted to select your token and enter in the value from the token to authorise the batch.
A final prompt will appear asking if you are sure you wish to authorise this batch.
Depending on the number of authorisations required (set up when you applied to receive a token for batch uploading) on your membership to have a batch processed you may still have to authorise the batch a number of times, by separate authorised tokenholders, before it will be ready for processing.