Reservation

In most cases, online bookings are the main sales channel for a modern hotel business.  The reservation module, which aids in the management of online bookings,

A hotel reservation system holds all inventory data and dates, sending this information to the front desk.
The reservation system must be integrated with the booking engine on the website as well as other distribution channels.

Key functions of the reservation module include:
Room bookings : The system checks room availability and status, and shows free rooms across different channels and the website booking engine.  This function monitors double bookings and allows group reservations.  The system then schedules bookings and displays current and upcoming booking information on a dashboard.
Collection of e-payments, and identification of types and categories of payments that are processed via this module.
Reservation emails : The system sends confirmations to guests after they complete bookings.
Activities booking : This software allows guests to book not only accommodation but also activities through this system. 

Revenue management

A HLMS in and of itself is a big step towards improving hotel revenue management indicators, such as occupancy, RevPAR (Revenue per Available Room), and ADR (Average Daily Rate), which mean a lot in evaluating a hotels financial success.  This module helps increase total revenue of rooms by using forecasting to optimise occupancy, deciding whether to raise or lower inventory prices.

The revenue management module enables dynamic pricing. Using algorithms, this module helps hotels price the rooms based on historical data about past reservations as it monitors competitors rates, weather data, and local events.
It improves pricing strategies and updates prices across all distribution channels to sell more rooms at the optimal rate.

CRM & customer data management

It is critical for hoteliers to collect and organise guest data to keep in touch with current and past customers during and after check-out. The CRM module must integrate with the front desk and reservation systems, collecting all guest information from these sources. 

It helps to store guest data and provides a database in an accessible format.
Also, it includes guest contact information before and after their stay.

This module can also help organise marketing and promotions, measure guest experience, and pre-and post-stay services. 

Reports and analytics

Rely on analytics to monitor current processes and understand business performance.
A HLMS can serve as a business intelligence tool, collecting relevant data and providing hoteliers with various types of automated reports.
Depending on the software, it can generate night audit reports, room and tax reports, shift audit reports, departure/arrival reports, housekeeping reports, etc.,