> ## Documentation Index
> Fetch the complete documentation index at: https://tatallo-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> The words these docs use, and what each means.

**PMS**
: A property management system: the software a professional host or property manager runs their properties on (Guesty, Smoobu, Cloudbeds, Kross Booking, ...). Several PMSs also act as channel managers.

**PMS account**
: A host's own account inside a PMS, where the host runs their properties.

**Tatallo PMS API**
: The API Tatallo publishes for PMSs to call, versioned by URL (`/v1`).

**PMS credential**
: The API key a PMS calls the Tatallo PMS API with. Each environment issues its own, and a key works only in the environment that issued it. Shown once, and handed over only through a one-time secret link; it can be rotated or revoked.

**Property**
: A place a host offers on Tatallo: an apartment, a house, a hotel. It has at least one unit, and a permanent `id` in the Tatallo PMS API.

**Unit**
: What a guest books at a property: the entire place, a private room, a shared room or a bed. Every property has at least one; a house is one entire-place unit, a hotel has one unit per room type. A unit sells once a night, or up to a quantity a night (a room type with five identical rooms).

**Night**
: The unit of availability: one calendar date on one unit of a property.

**Reservation** Roadmap
: The stay in a booking: one unit of one property, from arrival to departure, for a set of guests. The industry's word, and what a PMS receives and keeps as its own record. Not part of the API yet; see the [roadmap](https://tatallo-docs.mintlify.site/roadmap.md).


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