
Settings → Organisation → Outgoing invoices
Open the Outgoing invoices settings.
Edit the Payment Information text shown on outgoing invoice PDFs.
Include {bank} where you want the IBAN and SWIFT/BIC to appear.
Include {ref} where you want the payment reference to appear.
Save the field when you leave it.
If you use {bank}, make sure an outgoing invoicing IBAN is set.
In Outgoing invoices settings, open Email Template.
Write the message that should appear when you send an invoice.
Save the template when you leave the field.
This affects the email body, not the PDF itself.
Choose how many days after the due date to start reminders.
Enable 7, 14, or 30 days with the checkbox.
Edit the reminder text for each enabled day if needed.
Repeat for any other reminder day you want active.
Turning on a day adds a default reminder message automatically.
Open the outgoing invoice number suggestion in the invoice flow or related API response.
Use the suggested number as the next invoice number.
If no previous sent or paid invoices exist, expect an empty suggestion.
Keep your own numbering consistent with the suggested pattern.
The suggestion is based on the last sent or paid invoice.
Add an IBAN to your organisation’s outgoing invoicing bank details.
Check that your Payment Information text includes {bank}.
Save the settings again after updating the IBAN.
Add {ref} to the Payment Information text.
Save the field again after inserting the reference tag.
Check whether any invoices have been sent or paid yet.
Create the first invoice number manually.
Use the existing numbering pattern for future invoices.
Open the reminder day and edit its text.
Disable and re-enable the day to restore the default message.
Save the updated reminder configuration.