Tips for using ACH payments?

Keep your account information (name, address, phone, email) up-to-date. This is important for Trailhead and merchants in case either party needs to get in touch with you.
Frequently review your statements and transaction history. Consider signing up for account alerts via Online or Mobile Banking so you know when payments and deposits occur.
As with any check you write or payment you make, always confirm you have sufficient funds in your account. Online Banking and using account alerts make for easy monitoring.