Y (Market Data Request Reject)
The FIX message Y (Market Data Request Reject) is used to reject the V (Market Data Request) message.
Reception of this message indicates a mistake in the V (Market Data Request) message, and helps troubleshoot the specific problem causing the rejection.
| Tag     | Name             | Type     | Required                                                         | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------|-|------------------|----------|------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 262 | | MDReqID        | String | yes                         | Unique identifier of the subscription provided with the V (Market Data) request.                                                                                                                                                                                                                                                                                                   |
| 281 | | MDReqRejReason | Char   | yes, by Revolut FIX Gateway | Reason for the rejection of a V (Market Data) request. 
Supported values: 
-  0- Unknown symbol
-  1- Duplicate 262MDReqID
-  4- Unsupported 263SubscriptionRequestType
-  5- Unsupported 264MarketDepth
-  8- Unsupported 269MDEntryType
-  y- Unknown 262MDReqID
For more details, see FIX 4.4 : Market Data Request Reject <Y> message in the FIX 4.4 documentation.