Use this filter to change the information passed to the Braintree gateway transaction attributes. Default data includes the customerID and transaction amount.

apply_filters( 'pmpro_braintree_transaction_sale_array', $braintree_sale_array );

Parameters

$braintree_sale_array
array; An array of transaction attributes supported by the Braintree/PHP Library

Source

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

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