This document contains all the information related to installment payment confirmation notifications, email customization, and activation.
Overview
“Installment Paid” is the email notification sent automatically every time a scheduled installment payment is successfully processed.
This notification confirms the payment, updates customers about their installment progress, and ensures transparency by showing paid amounts and remaining installments.
The email includes:
- Subscription start date
- Subscription ID
- Payment method
- Product details (title, variation, quantity, and price)
- Subtotal
- Shipping
- Taxes
- Discounts
- Total amount
- Installment schedule with due dates, status, and amounts
The email also reassures customers that their subscription plan is active and progressing smoothly.
Pre-requisites: Before enabling email notifications, ensure your WordPress site is configured to send emails:
- SMTP plugin required: WordPress doesn’t reliably send emails by default. Install and configure an SMTP plugin like WP Mail SMTP.
- Email service provider: Connect your SMTP plugin to a transactional email service (Brevo, Mailgun, SendGrid, Amazon SES, or your hosting provider’s SMTP).
- Match sender details: Ensure that the From Email and From Name values configured in Sublium Subscriptions email notifications exactly match the sender details set in your SMTP plugin.
- Test your setup: Send a test email from your SMTP plugin to confirm emails are delivering before enabling Sublium notifications.
Without proper email configuration, notifications will fail silently.
For more details, refer to our doc on how to set up WP SMTP.
Access “Installment Paid” Email Notification
Navigate to Sublium Subscriptions ⇒ Settings ⇒ Notifications.
Under the Installments tab, you will find the Installment Paid email notification.
Trigger Conditions
This email is sent when:
- A scheduled installment payment is successfully processed
- An installment payment is updated in the system
Audience
By default, this email is sent to the customer.
Email Customization
You can customize this notification using two editor types:
- Rich Text
- Visual Editor
A prebuilt Installment Paid template is available in both editors, which can be modified or rebuilt as needed.
Guide: For more details, check our documentation on email customization.
Personalization
Sublium Subscriptions offers merge tags to personalize the subject line, preview text, and email body.
Simply copy and paste them where needed.
Merge tags used in the prebuilt template:
- {{subscriber_first_name}} – Displays the subscriber’s first name.
- {{subscription_id}} – Displays the unique subscription ID.
- {{installments_paid_count}} – Shows how many installments have been paid so far.
- {{installments_total_count}} – Shows the total number of installments for the subscription.
- {{site_title}} – Displays the site or store name.
- {{admin_email}} – Displays the administrator’s email address.
Guide: For more details, check our documentation on Merge Tags
How To Activate
To activate the Installment Paid email, turn ON the toggle next to the notification inside Sublium Subscriptions.
This setup ensures customers are informed of successful installment payments, installment progress, and remaining balances, helping maintain transparency and trust in subscription billing.
Troubleshooting
Emails not sending
- Confirm your SMTP plugin is configured and sending test emails successfully
- Check your SMTP plugin’s email logs for failed delivery attempts
- Verify the notification toggle is enabled
- Ensure the customer has a valid email address on their order
Merge tags showing as plain text
- Confirm you copied the full merge tag, including the curly braces, e.g., {{subscriber_first_name}}
- Check for extra spaces inside the merge tag
- Use only merge tags from the official list; custom tags won’t work
Email is going to spam
- Configure SPF, DKIM, and DMARC records for your sending domain
- Avoid spam trigger words in your subject line
- Use a reputable transactional email service
Email looks broken or unstyled
- Test across multiple email clients (Gmail, Outlook, Apple Mail)
- Avoid complex CSS, as email clients have limited style support
- Use the Visual Editor’s built-in templates for better compatibility
