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Use Settings > Emailing > Customer emails to select which invoice and credit note notifications Hyperline sends. You can enable separate notifications for invoices with manual or automated payment methods, paid invoices, payment failures, finalized credit notes, and settled credit notes. See Customer automated emails for the full list. The recipient email corresponds to the one specified in the Invoice emails field on your customer page (located in the Information panel). If this field is not defined, Hyperline uses the main Email of the customer.
Hyperline still generates zero-amount invoices for record-keeping and closes them automatically without attempting payment collection. These invoices do not trigger Invoice to pay or Invoice paid emails, even when enabled.

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Invoice ready to be paid

Enable Invoice to pay (manual payment) to notify customers when an invoice with a manual payment method, such as bank transfer, is generated. The email includes the invoice PDF. Enable Invoice to pay (automated payment) separately if you also want to notify customers when an invoice with an automated payment method is generated. For bank transfers, the invoice includes the details selected by the invoicing entity’s bank transfer configuration.
For invoices eligible for automatic e-invoicing, Hyperline sends the invoice-to-pay notification when the invoice is transmitted to the e-invoicing system, rather than when it is issued.
To learn more about payment reminders and the dunning process, see the Invoice reminders article.

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Invoice paid

When Invoice paid is enabled, Hyperline sends this email with the PDF attached once an invoice is fully settled. This includes invoices settled after you use Add payment to record or allocate an offline payment.

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Credit note notifications

Credit notes have their own notification settings:
  • Credit note finalized: sent when a credit note is finalized and not yet refunded.
  • Credit note settled: sent when a credit note has been applied.

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Preview and track emails

Use Settings > Emailing > Templates to preview invoice and credit note emails in each language and for each invoicing entity. To inspect an email already sent, open Audit logs > Email activity and select it. You can review its recipients, status, saved content when available, and delivery history. See Sent emails and delivery history for details and preview availability. To use your own email address, configure a custom sending domain and sender settings.

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Resend an invoice or credit note by email

You can resend an invoice or credit note by email by clicking the Resend by Email button in the invoice dropdown. This button is available on both the invoices list and the invoice page. Hyperline sends the appropriate email based on the invoice status.
Hyperline asks you to confirm the action and reminds you of the email address it will be sent to. The Invoice emails address takes precedence over the customer’s main Email.
If everything looks good, click Resend email to send the email. Hyperline also adds an entry to the invoice’s history.

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Email sending delay

Hyperline sends invoicing emails right after the invoice is generated. The delay might vary slightly depending on the method. After actions such as checkout completions, payment errors, and manual charges, Hyperline sends the email immediately. When the billing schedule generates invoices automatically, the email can take up to 5 minutes to reach the customer.