# Verify, Order & Ticketing Errors

Use this page when failures happen after search and before final ticketing completes.

### Verify-stage codes

#### `200` Illegal routing identifier

The `routingIdentifier` does not match a valid search result.

**Action**

* Use the latest identifier from search
* Do not modify the value

#### `202` Routing identifier expired

The identifier is too old.

**Action**

* Run search again
* Use the new `routingIdentifier`

#### `206` / `207` No flights or target flight does not exist

Inventory changed after search.

**Action**

* Start from search again

#### `210` / `211` Fare family sold out or not found

Fare or cabin is no longer available.

**Action**

* Search again and re-select a valid offer

### Order-stage codes

#### `300` Invalid session information

The `sessionId` is wrong.

**Action**

* Use the `sessionId` returned by verify

#### `301` Session does not exist or timed out

The verification session expired.

**Action**

* If verify is still recent, repeat verify
* Otherwise start from search

#### `308` Price changed

Pricing changed between verify and order.

**Action**

* Restart from search or verify
* Reconfirm current price before booking

#### `309` Ancillary not found

The ancillary product code is invalid or outdated.

**Action**

* Re-read ancillary options from verify
* Use returned `productCode` values only

#### `312` / `315` Too many seats booked or not enough seats

Inventory changed or requested seat count exceeds availability.

**Action**

* Reduce seats or restart from search

#### `318` Duplicate booking

A booking with the same passenger and flight details may already exist.

**Action**

* Query existing orders before retrying

### Ticketing-stage codes

#### `602` / `603` Flight not found or sold out

The fare became unavailable after payment.

**Action**

* Start a new booking flow

#### `609` Contact email is blocked by airline

The airline rejected the supplied contact email.

**Action**

* Use another email
* Or use Atlas-generated contact email flow

#### `613` Payment rejected by airline risk control

The airline blocked fulfillment.

**Action**

* Try another card
* Or retry with deposit mode

#### `616` 3DS authentication required

Atlas cannot complete 3DS card authentication in this flow.

**Action**

* Use a non-3DS card
* Or pay with deposit mode

#### `617` Insufficient balance

Atlas deposit balance is too low at ticketing time.

**Action**

* Top up the account and retry

### Related pages

* [Verify](https://resources.atriptech.com/api-document/readme/booking-overview/verify)
* [Create Order](https://resources.atriptech.com/api-document/readme/booking-overview/create-order)
* [Payment & Ticketing](https://resources.atriptech.com/api-document/readme/booking-overview/payment-and-ticketing)
* [Query Order](https://resources.atriptech.com/api-document/readme/booking-overview/query-order)