Change or add parameters to an name-value-pair string sent to PayPal when trying to create a subscription. Passes the nvpString and order object.

apply_filters("pmpro_create_recurring_payments_profile_nvpstr", string $nvpStr, MemberOrder $order);

Parameters

$nvpString
string
$order
MemberOrder;

Source

File: https://github.com/strangerstudios/paid-memberships-pro/blob/master/classes/gateways/class.pmprogateway_paypalexpress.php

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