payline

Payline is a term used in payment processing and commerce with more than one meaning. In general terms, a payline refers to the data path that carries payment instructions and responses between a merchant’s checkout, the payment gateway, card networks, and the issuer. The payline encompasses the data fields required to initiate a payment—such as amount, currency, merchant identifier, card data or token, and authentication results—as well as the responses that indicate authorization or decline. This data flow is implemented through hosted payment forms, direct-post APIs, or point-of-sale software, and is governed by security and privacy requirements that shape how the payline is constructed and safeguarded, notably under PCI DSS.

Payline Data and other payment service offerings use the term Payline as a brand name for payment processing solutions. Payline Data, a French-based provider, offers online and mobile payment processing with options such as hosted payment pages, API integrations, and plugins for e-commerce platforms. Their solutions support major card networks and additional payment methods, and typically include features like fraud screening, recurring payments, and settlement services. As with other gateways, Payline-enabled systems aim to authorize transactions securely, manage risk, and facilitate settlement to the merchant’s bank account. The exact features and regional availability can vary by product and market.

There are other vendors that also use the Payline name for payment solutions. Because features, integration methods, and security practices differ across providers, users should consult the specific product documentation for precise capabilities. See also: payment gateway, merchant account, PCI DSS, tokenization.