# Proforma Invoice (COD)
As a Cash-on-Delivery (COD) supplier, raise an advance (proforma) invoice from the supplier portal before delivery, with no goods receipt required.
URL: https://www.procureflow.ai/docs/supplier-portal/upload-proforma-invoice-cod
Available to a Supplier on a **Cash-on-Delivery (COD)** purchase order, that is, one with **Payment Terms of 0 days**. On these orders you can raise an advance (proforma) invoice from the supplier portal before delivery, with no goods receipt required.
Log in to the Supplier Portal [#log-in-to-the-supplier-portal]
Sign in to the buyer's supplier portal:
1. Open the **Supplier Portal** link for the buyer's organisation (it is included in your purchase-order email).
2. Enter your registered **email address** and click **Continue**.
3. Enter the 6-digit **one-time passcode (OTP)** sent to that email to sign in.
The portal is scoped to a single buyer organisation and only shows your own company's documents.
Open your COD purchase order [#open-your-cod-purchase-order]
Find the order you want to bill:
1. Go to **Purchase Orders**.
2. Open the purchase order.
On a Cash-on-Delivery order, the **Order Summary** shows **Payment Terms: 0 days**, and an **Upload Invoice** button appears in the header.
Click **Upload Invoice** to start your invoice.
**COD only:**
The
**Upload Invoice**
option appears only on 0-day (Cash-on-Delivery) orders. Orders with credit terms are invoiced from a goods receipt instead, so this button will not appear for them.
Select the items to invoice [#select-the-items-to-invoice]
The wizard opens on **Step 1: Items**. It shows three amounts: the **PO Total**, the amount **Already Invoiced**, and the **Remaining to Invoice**. The unit price is fixed to the PO price, and each line **Amount** is calculated for you.
Choose what to bill:
1. Tick each line item you want to bill.
2. Set the **Invoice Qty** for each line. It defaults to the remaining quantity and cannot exceed it.
3. Click **Next**.
Enter invoice details and attach your document [#enter-invoice-details-and-attach-your-document]
On **Step 2: Details**, complete the invoice:
1. Enter your **Invoice Number**.
2. Enter the **Invoice Date**.
3. Review the read-only items recap and the calculated **Invoice Amount**.
4. Add an optional remark.
5. Upload your invoice file (PDF, JPG or PNG) in the **Invoice Document** dropzone.
6. When everything is filled in, click **Upload Invoice**.
**Tip:**
The invoice amount is always
*quantity × PO unit price*
, so it stays matched to the purchase order. You can go
**Back**
to adjust the selected items before submitting.
Your advance invoice is raised [#your-advance-invoice-is-raised]
The invoice is created and now appears in the **Invoices** list on the purchase order, tagged **Advance payment** with a status of **Pending finance checks**.
The buyer's finance team reviews it for payment.
From here you can:
* Click **View details** to see the invoice.
* Raise another invoice for any remaining quantity the same way.