• New – created, not yet sent; invisible to the customer.
• Sent – emailed to the customer; they can Accept/Reject and sign contracts.
• Signed and Approved – the customer accepted (and signed all required contracts); payment can be made.
• Rejected – the customer declined.
• Partially Paid – at least one payment recorded but a balance remains (e.g. a deposit).
• Fully Paid – payments cover the total.
• Past Due – Signed and Approved / Partially Paid proposals whose Due Date + Net Days has passed without full payment (set by the daily job).
• Completed – you mark the event as done (manual).
• Archived – hidden from the customer and from the active pipeline (manual).

You can set any status manually in Payment Options > Status, but Sprwt will re-evaluate Signed and Approved / Partially Paid proposals against their payment history each time the proposal is opened.