Add extra columns to the Orders page with the pmpro_orders_extra_cols_body and pmpro_orders_extra_cols_header hooks. Passes the $order object.

do_action( "pmpro_orders_extra_cols_body", MemberOrder $order );

Parameters

$order

MemberOrder

Source

File: https://github.com/strangerstudios/paid-memberships-pro/blob/master/adminpages/orders.php