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

# Reverse Check-In

> Oracle Opera check-in reversal event

# Reverse Check-In

A check-in is reversed (undone) in Oracle Opera.

## Data Synced

* Reservation confirmation number
* Updated status (Confirmed/Upcoming)

## Effect in ABRA

When this event is received, ABRA:

* Reverts the reservation status from "In House" back to "Upcoming"
* Updates the reservation timestamp