/invoicing/settings has two groups. Your details on the invoice controls the logo and the business name, address, and tax or registration number. New invoice defaults controls numbering, currency, tax rate, payment terms, and terms text. Defaults are copied into a new draft. Business details and the draft's contents are snapshotted when that draft is issued. Changing settings does not change an issued invoice or its PDF.

The Logo page shows the current image and can replace or remove it. The default payment-term value can be zero for payment on receipt. A contact's own payment terms override the context default when creating an invoice.

Open a draft and choose Preview PDF to inspect its customer, business identity, line items, totals, notes, and terms. A draft preview reflects current invoice settings and contact details. Correct those details before issuing.

Review and send opens the recipient step. It lists the contact's saved addresses, with primary addresses selected, and accepts one additional address that is not saved. Issue and send makes the invoice final before sending. The exact PDF is stored as a private invoice record and attached to the email.

Each recipient receives a separate email, so addresses are not disclosed to one another. The invoice Activity section records whether each message was sent. A failure for one address does not hide successful deliveries to the others. An issued or paid invoice can be sent again; Magpie attaches the original issued PDF. A void invoice cannot be sent.

Delivery records show that the email service accepted a message, not that the recipient's provider placed it in the inbox. Ask the recipient to check spam and verify the address before sending another copy.

If an issued PDF is unavailable or delivery attempts repeatedly fail, Contact support.