---
title: How do I synchronize reservations?
description: Find out how to receive in Doinn reservations from your calendars
---
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February 23, 2024
# How do I synchronize reservations?
## Find out how to receive in Doinn reservations from your calendars
**Last Updated**: *February 08, 2024*
**Applies to:** *All users*
To generate services automatically in Doinn, for each reservation you have in the properties calendar, reservations need to be received in Doinn.
This could be done in two ways:
#### 1. You connected your PMS with Doinn through **Integration.**
In case you have integration running, the integration with your PMS will automatically send properties and all reservations the moment you run the integration and connect Doinn with your PMS. From then on, **systems will synchronize each hour to keep the information updated**.
This means that any change in reservations, or any new reservations in the original calendar will arrive in the next hour to Doinn and if any service was automatically generated for that reservation, **the service will automatically update** according to the new information related to that reservation.
#### 2. You created properties manually in Doinn and connected your calendars with Doinn via **ICal.**
Reservations will arrive at Doinn via Ical that you left in each property. From then on, **systems with synchronize each hour to keep the information updated**.
This means that any change in reservations, or any new reservations in the original calendar will arrive in the next hour to Doinn and if any service was automatically generated for that reservation, **the service will automatically update** according to the new information related to that reservation.
When reservations are received in Doinn, you can create Automation to generate automatically services per reservation.
To find out more about how to generate services automatically, check these articles [Automations - Menu](https://help.doinn.co/en/knowledge/automations-menu?hsLang=en) and [Create automation](https://help.doinn.co/en/knowledge/create-automation-automate-all-scheduling-based-in-doinn-5-elements-formula-where-when-what-who-how?hsLang=en)
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