A walkthrough on how to make changes to an order using the Duffel API. In order to follow this guide, we recommend you go first through our _Duffel API Quick Start Collection_ where we cover how to make an order through our API. In order to follow this guide, you'll need to: - [Sign up](https://app.duffel.com/join) for a Duffel Account (it takes about 1 minute!) - Create a test token from the "Access Tokens" page in your [Dashboard](https://app.duffel.com) and paste it in the `Authorization` section of the Postman Collection (**Don't forget to hit save afterwards**) - Copy the `id` of the order you created in the _Quick Start_ guide, and paste it as value for `ORDER_ID` in the `Variables` section of the Postman Collection (**Don't forget to hit save afterwards**) Our requests have a pre-defined sequence to replicate creating a booking in a real world scenario: 1. Getting a single order 2. Creating an order change request 3. Reviewing the available order change request offers 4. Creating a pending order change 5. Confirming an order change **NOTE:** By running the requests in the sequence mentioned above, you'll get most fields automatically pre-filled for you.

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Versori’s connector engine means there is no dependency on an existing library of apps, all you need to start is the documentation of the app or system you want to integrate to.