> For the complete documentation index, see [llms.txt](https://resources.atriptech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.atriptech.com/api-document/support-and-reference/troubleshooting-and-support/faqs.md).

# Atlas API FAQs

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Use this section for common Atlas API integration questions and edge cases.

New to Atlas API? Read [What is Atlas API?](/api-document/what-is-atlas-api.md) for product capabilities and starting points.

Start here when you need to:

* find the right FAQ by implementation stage
* answer a common onboarding or booking question fast
* route payment, ticketing, or post-booking questions to the right page

### Start with the right FAQ section

#### Before kickoff or onboarding

Use these pages first:

* [Before Integration](/api-document/support-and-reference/troubleshooting-and-support/faqs/before-integration.md)
* [Kickoff Checklist](/api-document/support-and-reference/troubleshooting-and-support/faqs/kickoff-checklist.md)
* [Top Questions for Partners](/api-document/support-and-reference/troubleshooting-and-support/faqs/top-questions-for-partners.md)

#### Sandbox, setup, and first implementation

Use:

* [Getting Started](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-general-information.md)

#### Search, booking, and ticketing

Use:

* [Search & Booking](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-search-and-book.md)
* [Orders & Ticketing](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-order.md)
* [Fulfilment API FAQ](/api-document/support-and-reference/troubleshooting-and-support/faqs/fulfilment-api-faq.md)

#### Payment, refund, and finance

Use:

* [Payments](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-payments.md)
* [Finance](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-finance.md)

#### Post-booking operations

Use:

* [Post-booking](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-post-ticketing.md)

### FAQ categories

* [Before Integration](/api-document/support-and-reference/troubleshooting-and-support/faqs/before-integration.md)
* [Kickoff Checklist](/api-document/support-and-reference/troubleshooting-and-support/faqs/kickoff-checklist.md)
* [Top Questions for Partners](/api-document/support-and-reference/troubleshooting-and-support/faqs/top-questions-for-partners.md)
* [Getting Started](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-general-information.md)
* [Search & Booking](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-search-and-book.md)
* [Orders & Ticketing](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-order.md)
* [Fulfilment API FAQ](/api-document/support-and-reference/troubleshooting-and-support/faqs/fulfilment-api-faq.md)
* [Post-booking](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-post-ticketing.md)
* [Payments](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-payments.md)
* [Finance](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-finance.md)

### FAQ

#### What is Atlas API?

Atlas API supports flight shopping, booking, payment, ticketing, and post-booking operations.

Use [Atlas API concepts](/api-document/support-and-reference/atlas-api-concepts.md) for definitions of booking flows, identifiers, orders, and webhooks.

#### Where should a new Atlas API partner start?

Start with [Before Integration](/api-document/support-and-reference/troubleshooting-and-support/faqs/before-integration.md) for high-priority planning questions.

Then use [Kickoff Checklist](/api-document/support-and-reference/troubleshooting-and-support/faqs/kickoff-checklist.md) to align flow choice, payment design, ticketing handling, and launch scope.

#### Where can I find booking and ticketing questions?

Use [Search & Booking](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-search-and-book.md) for search, verify, pricing, and booking flow questions.

Use [Orders & Ticketing](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-order.md) for order status, ticketing, PNR, and follow-up questions.

Use [Fulfilment API FAQ](/api-document/support-and-reference/troubleshooting-and-support/faqs/fulfilment-api-faq.md) when the main question is whether Fulfilment API fits your model or how it works alongside existing Atlas interfaces.

#### Where can I find payment or refund questions?

Use [Payments](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-payments.md) for deposit, VCC, card handling, and payment limits.

Use [Fulfilment API FAQ](/api-document/support-and-reference/troubleshooting-and-support/faqs/fulfilment-api-faq.md) when the payment question is tied to Fulfilment API fit, dual payment paths, or failure alert timing.

Use [Post-booking](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-post-ticketing.md) and [Finance](/api-document/support-and-reference/troubleshooting-and-support/faqs/atlas-api-finance.md) for refunds, follow-up, top-ups, and reconciliation questions.