Ran across this AI generated advice, which isn't guaranteed to be 100% accurate
"NCH Express Invoice allows you to export your customer list, including their email addresses, for use in other applications such as Mailerlite. Here’s how you can do it:
Open the Customers List window in Express Invoice.
Select all or the desired customers from the list.
Click the Customer menu at the top.
Select Export to CSV.
The exported CSV file will typically include customer details such as name, email address, and status (active/inactive). If you need to include both current and archived (inactive) customers, make sure to check the option to include inactive customers in your list before exporting.
You can then import this CSV file into Mailerlite to update your subscriber list and send product update emails
. If you want to segment by customer status (current/archived), ensure the status field is visible and exported from Express Invoice, and then use that field to create groups or segments in Mailerlite.
Summary of steps:
Export customer list (with emails and statuses) from Express Invoice as CSV.
Import the CSV file into Mailerlite.
Use the status field in Mailerlite for segmentation if needed.
This workflow is supported by both NCH Express Invoice and Mailerlite documentation."