> ## Documentation Index
> Fetch the complete documentation index at: https://docs.arcuserp.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Pay From an Email Link
> Pay an invoice balance from the Pay Now link in the seller's email, without signing in to the customer portal: the amount due, the card on file, a different card, and what each message means.
Use the payment link when you want to pay one invoice quickly. The **Pay Now** button in an invoice email, a payment reminder, or a revised invoice opens a secure payment page for that invoice. You do not need a portal login.
**Where:** Customer Portal > Email links > Pay
## Before You Start
* The link works only for the invoice it was sent for. It does not show your other invoices or your account history.
* The link can expire. When it does, ask the seller to resend the invoice or payment request.
* Arcus works out the amount due on its own each time the page opens, from the invoice's current balance. You cannot change the amount on this page.
## Pay The Invoice
1. Select **Pay Now** in the email. The page opens with the seller's name and branding.
2. Check the header: **Invoice** with the invoice number, and **Amount due** in large type.
3. Pay one of two ways:
* **Card on file.** When the seller has a default card saved for your account, the **Card on file** section shows the card brand, the last four digits, and the expiry, with the line "Pay instantly with the card on file for this account." Select **Pay** with the amount and **with this card**.
* **A new card or another method.** Select **Use a different card**, or, when there is no card on file, go straight to **Payment details**. The form accepts "Cards, ACH, and other Stripe-supported methods." Enter the details and select **Pay now**.
4. If your bank asks you to confirm the payment, follow its prompt. The page finishes the payment once you confirm.
## When The Payment Succeeds
The page shows **Payment received** with "Thank you. A receipt will be emailed to you shortly."
* **The invoice balance goes down.** Once the card processor confirms the payment, the seller's records apply it to the invoice and your account balance updates.
* **You receive a receipt email.**
* **The seller's activity history records the payment** as started from a payment link.
A bank payment (ACH) can take a few business days to clear before the invoice shows as paid.
## Other Ways To Pay
The **Other ways to pay** card at the bottom of the page shows the seller's name, phone, email, and address. Contact the seller there to pay by check, wire, or another method they accept.
## Messages You Might See
| Message | What it means | What to do |
| ------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| **Payment unavailable** with "This payment link is invalid or has expired." or "Link not found or expired." | The link expired, was replaced, or is not a payment link. | Ask the seller to resend the invoice or payment request, or sign in to the portal and pay from **Invoices**. |
| **This invoice has already been paid in full.** | Nothing is left to pay. | No action needed. Sign in to the portal to see the payment. |
| **Payment unavailable** with the text "order\_not\_payable" | The invoice was cancelled, voided, or fully refunded, so it no longer accepts payment. | Contact the seller. |
| **Payment unavailable** with the text "connector\_not\_configured" | The seller cannot take card payments online right now. | Contact the seller and ask how else you can pay. |
| **This payment method is not on file for this account.** or **This card is no longer available. Please use a different card.** | The saved card cannot be used. | Select **Use a different card** and pay with another card. |
| **Payment was not completed. Please try a different card.** or **Payment could not be completed. Please try a different card.** | The bank declined the payment, or you did not finish its confirmation step. | Try again, use a different card, or contact your bank. |
| **Authentication required, but Stripe is not yet ready. Please retry in a moment.** | The page was still loading when your bank asked for confirmation. | Wait a moment and select the pay button again. |
| **Too many requests. Please slow down.** | The link was opened or submitted many times in a few minutes. | Wait five minutes and try again. |
## Common Scenarios
### You want to pay several invoices
A payment link covers one invoice. Sign in to the customer portal and use **Invoices** to pay each open invoice, or contact the seller.
### You want to save or change a card
The payment link cannot add, remove, or change saved cards. Sign in to the portal and use **Payment Methods**.
### You paid by another method already
If you paid by check or wire, the link still shows the balance until the seller records that payment. Contact the seller before paying again.
## Related Articles
Customer Portal > Payments: payment history and payments from inside the portal.
Customer Portal > Invoices: every invoice on your account and its balance.
Customer Portal > Email links > View order: review the order or invoice behind the payment.
An overview of every link the seller can email you.