After sending the reminder email, the customer receives an additional Shopware status change email - how can I prevent this?

When the payment status is automatically changed after sending the reminder (e.g. to "Reminded"), Shopware will by default send its own system email for this status change. To disable this additional email, proceed as follows:

1. Open Shopware Admin --> Settings --> Email Templates
2. Search for the email template associated with the relevant payment status (e.g. "Reminder / Reminded").
3. Open this template and clear its content (delete the subject, HTML and plain text content), or:
4. Alternatively: Under Settings --> Workflows / State Machines, check the relevant status transition and remove or disable the associated email action there.

Tip: The easiest approach is to clear the content of the automatically sent Shopware status email for this transition - while Shopware will technically still send an empty email, this is in practice the simplest way to prevent the customer from receiving duplicate emails.