With ACH Universal version 2020.0.2, Build 1015, the email setting options have been updated so it is now possible to include your organization's logo in the email notification that is sent.
You will go through the Email Setup, following these directions: https://help.treasurysoftware.com/hc/en-us/articles/360010758753-Email-Notifications-Setup
When you get to Screen 4, click on the 'Logo' tab.
Choose whether the logo is web-based (a URL link) or whether the logo is a file to be uploaded.
Continue through the Email Setup until 'Finished'.