Hotel Systems Integration: PMS, POS, RMS, and Accounting
PMS, POS, RMS, accounting. One ledger.
Data flows where someone used to copy and paste.
PMS, POS, accounting. Three worlds, no conversation.
Every manual transfer is a scheduled mistake. When one person calls in sick, the operation stops. That isn't infrastructure you can rely on.
What this sounds like in practice:
- Your revenue is typed into accounting by hand each evening
- Your rates, master data, and guest records drift apart across three systems
- One person knows how the export works. She's out today.
What this means
In most properties, five to ten systems run for themselves, and only half of them talk to each other. Systems integration here means picking up the gaps and closing them. No new layer on top. I work on the lines that already exist.
First comes the system map. Current state, not target. Every integration is accepted with real records. The work is finished when the operation has stopped thinking about it.
A good integration is one nobody thinks about anymore.
Typical starting points
The restaurant's daily revenue is keyed by hand into hotel accounting every morning.
The revenue system runs on booking data that's twelve hours old, because the export runs only at night.
Guest records live in three systems, spelled three different ways, merged by hand at every mailing.
How this runs, step by step
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Draw the system map.
One page, all systems, all flow directions, all breaks. Not a diagram for the SOP binder. A working document the team uses.
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Set priorities.
Which integration costs the most time, which one corrupts numbers, which one is cosmetic. Decided together with the GM and the accounting lead.
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Get the vendors in one room.
Two or three vendors, no commission interest. Realistic effort, binding timelines, acceptance criteria on one page.
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Test, don't trust.
Every integration accepted with real records. Failure cases provoked on purpose. The integration is done when a real error gets handled the right way.
Implementation
Tech-stack selection, rollout, team training. I stay on through systems integration projects, from the first requirements review to live operation. When vendors negotiate, I sit on your side of the table. Not in the middle.
Systems I work with
- POS / point of sale
- Connection to hotel systems and accounting
- Channel manager
- Rate distribution and availability across all booking channels
- Revenue management (RMS)
- Data delivery, system configuration, vendor selection
- Accounting systems
- Integrations into operational systems, handoffs without manual steps
- BI & reporting
- Microsoft Power BI and MyControlling.app
- Digital guest folders
- Setup and configuration of digital guest interaction
- Hotel management tools
- Task management, internal communication, cross-department flow
- CRM systems
- Guest care, segmentation, connections to reservations and marketing
PMS implementation I leave to specialists who do nothing else. Selection I cover in Digital Operations. If you need a recommendation, I have one. I just don’t run the rollout myself.
The difference from an IT consultant: I know what actually happens in a hotel at five in the morning.
After a clean integration, duplicate data entry drops by 50 to 70 percent.
Other services
Operational Efficiency → Digital Operations → Financial Management →
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