Reminding clients about overdue payments can be really uncomfortable. Sometimes, you can even forget to send a reminder. Payment reminders in ActiveCollab solve this problem by allowing you to send automated reminder messages.
Open System Settings.
Click Edit Invoicing Settings.
Turn on Automatic invoice overdue reminder.
Set the time after which ActiveCollab sends a reminder to clients.
Set Then repeat every and choose the frequency.
Customize the Reminder message.
Click Save Changes.
After you’ve enabled overdue reminders, ActiveCollab will automatically send the reminder email with the invoice PDF in the attachment.