Payment Link Expiration

Overview

Meaning in plain language

Payment link expiration is the timestamp or rule after which a payment link no longer creates or accepts ordinary payment sessions. Expiration can protect prices, campaigns, inventory, account access, and payment instructions from indefinite reuse.

How it works

Important risks include client clock manipulation, links accepted by one service after another rejects them, late payments, duplicate replacements, and hidden stale addresses.

For Payment Link Expiration, shareability and reusability must be defined explicitly. When Payment Link Expiration interacts with Payment Link Branding, a single-use link should reject or safely reconcile repeated attempts, while a reusable link needs a rule for creating separate payment sessions and associating each payer or order. In the relationship between Payment Link Expiration and Payment Link Status, links embedded in email, chat, social media, or QR codes should be treated as public and must not contain API secrets or sensitive customer data.

The workflow for Payment Link Expiration commonly touches Payment Link Branding and Payment Link Status.

A closer look at the mechanics

A reliable expiry check happens when a payment session is created and when an associated incoming transfer is adjudicated. The first prevents old links from creating fresh financial instructions. The second handles transfers that were broadcast before the deadline but arrived in a later block. Record server-side times and define whether expiry is measured at request creation, initial observation, block inclusion or final acceptance.

Where people get it wrong

Client device clocks can be wrong, and a late block confirmation does not tell you when the customer initiated the payment. Use server timestamps and keep a controlled late-payment exception path.

Related concepts

Fixed-Amount Crypto Payment Link, Payment Link Usage Limit, Crypto Payment Link.