acf/upgrade_550_taxonomy │ action-hook │ ACF 1.0

Usage

add_action( 'acf/upgrade_550_taxonomy', 'wp_kama_acf_upgrade_550_taxonomy_action' );

/**
 * Function for `acf/upgrade_550_taxonomy` action-hook.
 * 
 * @param  $taxonomy 
 *
 * @return void
 */
function wp_kama_acf_upgrade_550_taxonomy_action( $taxonomy ){
	// action...
}

$taxonomy

-

Where the hook is called

do_action( 'acf/upgrade_550_taxonomy', $taxonomy );

Where the hook is used in Advanced Custom Fields PRO