What is on the invoice page your client opens, how they pay by card or bank transfer, and how long the link keeps working.

What Billow drafts when your client accepts an offer, how the deposit percentage sets the schedule, how to send the drafts, and how to create a deposit invoice yourself.

How to choose between bank transfer and card, mark an invoice as paid, resend it and send a reminder, and what your client receives after paying.

How to import invoices from another tool, which files you can upload, how to review and fix rows before importing, and what the imported invoices look like.

What each invoice status means, how an invoice moves between them, how to find, rename, duplicate, delete and restore invoices, and how numbering works.

How to refund a paid invoice, how each payment method is handled, and what a refund changes.

How to create an invoice, send it by email or share its link, what sending changes, how to correct a sent invoice, and what each field in the invoice form does.