PDF issues

• Blank PDF or missing logo: re-upload a transparent PNG and regenerate the PDF.
• Wrong totals: confirm currency, discounts, and tax toggles before exporting again.

Email issues

• Email not delivered: verify the customer email and try a different address; re-run send after regenerating the PDF.
• Spam folder: add a short, clear subject and keep attachments small.

Public link issues

• Link not loading: ensure public sharing is enabled for that invoice.
• Expired access: generate a new link if expiration is set or the invoice was cancelled.

Payments and status

• Status stuck: edit and save the invoice or payment to trigger a recalculation.
• Overdue too early: update the due date and save.