given milestone.
	 *
	 * @param int $milestone Order milestone.
	 * @return string Note title for the milestone.
	 */
	public function get_note_title_for_milestone( $milestone ) {
		switch ( $milestone ) {
			case 1:
				return __( 'First order received', 'woocommerce' );
			case 10:
			case 100:
			case 250:
			case 500:
			case 1000:
			case 5000:
			case 10000:
			case 500000:
			case 1000000:
				return sprintf(
					/* translators: Number of orders processed. */
					__( 'Congratulations on processing %s orders!', 'woocommerce' ),
					wc_format_decimal( $milestone )
				);
			default:
				return '';
		}
	}

	/**
	 * Get the appropriate note content for a given milestone.
	 *
	 * @param int $milestone Order milestone.
	 * @return string Note content for the milestone.
	 */
	public function get_note_content_for_milestone( $milestone ) {
		switch ( $milestone ) {
			case 1:
				return __( 'Congratulations on getting your first order! Now is a great time to learn how to manage your orders.', 'woocommerce' );
			case 10:
				return __( "You've hit the 10 orders milestone! Look at you go. Browse some WooCommerce success stories for inspiration.", 'woocommerce' );
			case 100:
			case 250:
			case 500:
			case 1000:
			case 5000:
			case 10000:
			case 500000:
			case 1000000:
				return __( 'Another order milestone! Take a look at your Orders Report to review your orders to date.', 'woocommerce' );
			default:
				return '';
		}
	}

	/**
	 * Get the appropriate note action for a given milestone.
	 *
	 * @param int $milestone Order milestone.
	 * @return array Note actoion (name, label, query) for the milestone.
	 */
	public function get_note_action_for_milestone( $milestone ) {
		switch ( $milestone ) {
			case 1:
				return array(
					'name'  => 'learn-more',
					'label' => __( 'Learn more', 'woocommerce' ),
					'query' => 'https://docs.woocommerce.com/document/managing-orders/?utm_source=inbox',
				);
			case 10:
				return array(
					'name'  => 'browse',
					'label' => __( 'Browse', 'woocommerce' ),
					'query' => 'https://woocommerce.com/success-stories/?utm_source=inbox',
				);
			case 100:
			case 250:
			case 500:
			case 1000:
			case 5000:
			case 10000:
			case 500000:
			case 1000000:
				return array(
					'name'  => 'review-orders',
					'label' => __( 'Review your orders', 'woocommerce' ),
					'query' => '?page=wc-admin&path=/analytics/orders',
				);
			default:
				return array(
					'name'  => '',
					'label' => '',
					'query' => '',
				);
		}
	}

	/**
	 * Convenience method to see if the milestone notes are enabled.
	 *
	 * @return boolean True if milestone notifications are enabled.
	 */
	public function are_milestones_enabled() {
		/**
		 * Filter to allow for disabling order milestones.
		 *
		 * @since 3.7.0
		 *
		 * @param boolean default true
		 */
		$milestone_notes_enabled = apply_filters( 'woocommerce_admin_order_milestones_enabled', true );

		return $milestone_notes_enabled;
	}

	/**
	 * Add milestone notes for other significant thresholds.
	 */
	public function other_milestones() {
		// If the milestone notes have been disabled via filter, bail.
		if ( ! $this->are_milestones_enabled() ) {
			return;
		}

		$last_milestone    = $this->get_last_milestone();
		$current_milestone = $this->get_current_milestone();

		if ( $current_milestone <= $last_milestone ) {
			return;
		}

		$this->set_last_milestone( $current_milestone );

		// We only want one milestone note at any time.
		Notes::delete_notes_with_name( self::NOTE_NAME );

		// Add the milestone note.
		$note = new Note();
		$note->set_title( $this->get_note_title_for_milestone( $current_milestone ) );
		$note->set_content( $this->get_note_content_for_milestone( $current_milestone ) );
		$note_action = $this->get_note_action_for_milestone( $current_milestone );
		$note->add_action( $note_action['name'], $note_action['label'], $note_action['query'] );
		$note->set_type( Note::E_WC_ADMIN_NOTE_INFORMATIONAL );
		$note->set_name( self::NOTE_NAME );
		$note->set_source( 'woocommerce-admin' );
		$note->save();
	}
}