If for any reason you need to update information related to a batch number, you can easily do so.
Navigate to Products and Services → View Products and Services.
Click on the SKU the batch number you want to edit is associated with. The product page will come up. At the top right, click on Batch Numbers.
This will show you all the batch numbers associated with this product. To edit the information for a certain batch, just click on Edit next to the batch number. Now make the changes, and hit Update.
You can also add a new batch number for the product in this view if you need to. Just click on New and fill in the information.