Thanks for reaching out to us about this customer statements preference, @hassan-bana.
At the moment, we're unable to add standard messages on statements like those on invoices and estimates. Your option for now is to manually add the custom message in the email body so you customers can see them.
Here at Intuit, we aim to understand better our customer's business needs within the software. This is why we welcome product suggestions to help improve our products and services. Changes in the program are released based on several factors, so we're unable to provide the turnaround time on when new features are released in QuickBooks. This info is controlled and handled mainly by the Developers Team.
You can share your suggestion within the program by following these steps in a web browser:
Click the Gear icon and choose Feedback.
Enter your suggestion for our engineers on the Feedback box.
Once done, press Next to send it.
To be updated with the recent and upcoming changes for QuickBooks products, please visit these sites: