Infrastructure & Integration7 min read2026-06-30

On-Premise to Cloud: 5 Critical Steps to Know During Hotel PMS Migration

H

YazarAuthor

Hotelsupp Engineering Team

On-Premise to Cloud: 5 Critical Steps to Know During Hotel PMS Migration

Hospitality technology is evolving rapidly. Over the past 5 years, a large portion of the industry has started migrating from traditional on-premise PMS systems to **cloud-based (Cloud PMS)** solutions. Platforms like Opera Cloud, ElektraWeb Cloud, HotelRunner, and Mews offer hotel management mobile access, automatic updates, and scalable infrastructure.

However, this migration carries significant operational risks if not properly planned. Transferring years of accumulated guest data, reservation histories, and accounting records to a new system without data loss requires meticulous technical work.


Step 1: Inventory Your Existing System

Before starting the migration, you must document all integrations in your current PMS:

  • Which systems talk to the PMS? (POS, door locks, accounting, channel manager, OTA connections)
  • What database type is in use? (MSSQL, Oracle, etc.)
  • How many years of historical data will be migrated?
  • This inventory directly determines the scope and duration of migration.

    Step 2: Data Cleansing and Standardization

    Data in legacy systems is often inconsistent, duplicate, or incomplete. Before moving to Cloud PMS:

  • Duplicate guest profiles must be merged and cleaned,
  • Closed reservations must be separated from future bookings,
  • Room types and rate plans must be aligned to the new system's terminology.
  • Step 3: Parallel Running Period

    The recommended approach for uninterrupted operations is to establish a **parallel running period** where both old and new systems operate simultaneously. During this phase:

  • New reservations are entered directly into the Cloud PMS,
  • Current in-house guests continue on the legacy system,
  • Data in both systems is compared daily to identify and resolve discrepancies.
  • Step 4: Rebuilding Integrations

    The Cloud PMS integration with POS, door locks, channel manager, and accounting software must be rebuilt from scratch. This stage is technically the most intensive and requires extensive API testing.

    Step 5: Staff Training and Go-Live

    Even with the technical infrastructure ready, staff unable to effectively operate the new system will cause operational disruptions. Before go-live:

  • Reception, accounting, and F&B teams should be trained using real-world scenarios,
  • The go-live date should be planned during a low-occupancy period (e.g., weekdays, off-season),
  • A technical support team should be on-site for the first 72 hours.
  • At **Hotelsupp**, we manage Cloud PMS migration projects end-to-end, shielding you from technical complexities while ensuring your operations continue uninterrupted. Contact us for migration consulting.

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