Browse the database of various action and filter hooks available in Paid Memberships Pro. Select an action or filter to view detailed information, examples, and related articles with code recipes.


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Filter Hook: 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.

Filter Hook: Change or add parameters to an name-value-pair string sent to PayPal when checking out. Passes the nvpString and order object.

Filter Hook:

Filter Hook: Change or add parameters to an name-value-pair string sent to PayPal when confirming a checkout for review. Passes the nvpString and order object.

Filter Hook: Change or add parameters to the data string used by PayPal to get subscription details.

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


Filter Hook: Filter parameters to the ReturnURL when checking out with PayPal Express. Returns an array of key, value pairs. { return array(“option” => “1”); }

Filter Hook: Change or add parameters to an name-value-pair string sent to PayPal in a couple cases. Passes the nvpString and order object.