# FAQ

**Invalid Credentials and Codes**:

* **Invalid Username/Password**:
  * If the `HotelARIGetRQ` contains an invalid Username/Password, the partner should return an error response with `ShortText="Invalid Username or Password"`.
* **Invalid HotelCode**:
  * If the `HotelARIGetRQ` contains an invalid HotelCode, the partner should return an error response with `ShortText="Invalid HotelCode"`.
* **Invalid RoomTypeCode or RatePlanCode**:
  * If the `HotelARIGetRQ` contains an invalid RoomTypeCode or RatePlanCode, the partner should return an error response with `ShortText="Invalid Room/Rate"`.

**XML Attributes**:

* **Request and Response XML**:
  * Will always contain an attribute `xmlns="http://cgbridge.rategain.com/OTA/2012/05"` at the root element.
* **Date Format**:
  * The date format for Start and End is always `YYYY-MM-DD`.


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