$ret = '';

		$period    = $this->get( 'period' );
		$frequency = $this->get( 'frequency' );
		$length    = $this->get( 'length' );

		// One-time payments don't display anything here unless filtered.
		if ( $frequency > 0 ) {

			if ( 1 === $frequency ) {
				$ret = sprintf( _x( 'per %s', 'subscription schedule', 'lifterlms' ), $this->get_access_period_name( $period, $frequency ) );
			} else {
				$ret = sprintf( _x( 'every %1$d %2$s', 'subscription schedule', 'lifterlms' ), $frequency, $this->get_access_period_name( $period, $frequency ) );
			}

			// Add length sentence if applicable.
			if ( $length > 0 ) {

				$ret .= ' ' . sprintf( _x( 'for %1$d total payments', 'subscription # of payments', 'lifterlms' ), $length );

			}
		}

		return apply_filters( 'llms_get_product_schedule_details', sprintf( $ret, $this->get( 'period' ), $frequency, $length ), $this );

	}