Advanced settings - Create payment link - Mercado Pago Developers
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Advanced Settings

Before creating your new payment solution, you can define other features using the “More options” button.

Payment methods to be offeredHere, you can enable the payment methods your customers can pay with.
Reference codeIt is a unique identification to recognize your product or service. It will be useful when looking for it on the list.
DurationConfigure how long you want your link or button to work for. Set a start date and an end date.
RedirectionIf needed, you can send your buyers to the website you want after payment.