Merge pull request #250413 from alexeyo26/alexeyo/stt-sessionid-warning

[Azure AI Svcs] Speech. Adding warning on strict GUID format in STT Session Id

Author: prmerger-automator[bot]

articles/ai-services/speech-service/how-to-get-speech-session-id.md

@@ -74,10 +74,15 @@ Generate a GUID inside your code or using any standard tool. Use the GUID value
 
 As a part of your REST request use `X-ConnectionId=<GUID>` expression. For our example, a sample request will look like this:
 ```http
-https://westeurope.stt.speech.microsoft.com/speech/recognition/conversation/cognitiveservices/v1?language=en-US&X-ConnectionId=9f4ffa5113a846eba289aa98b28e766f
+https://eastus.stt.speech.microsoft.com/speech/recognition/conversation/cognitiveservices/v1?language=en-US&X-ConnectionId=9f4ffa5113a846eba289aa98b28e766f
 ```
 `9f4ffa5113a846eba289aa98b28e766f` will be your Session ID.
 
+> [!WARNING]
+> The value of the parameter `X-ConnectionId` should be in the format of GUID without dashes or other dividers. All other formats aren't supported and will be discarded by the Service. 
+>
+> Example. If the request contains  `X-ConnectionId=9f4ffa51-13a8-46eb-a289-aa98b28e766f` (GUID with dividers) or `X-ConnectionId=Request9f4ffa5113a846eba289aa98b28e766f` (non-GUID) then the value of `X-ConnectionId` will not be accepted by the system, and the Session won't be found in the logs.
+
 ## Getting Transcription ID for Batch transcription
 
 [Batch transcription API](batch-transcription.md) is a subset of the [Speech to text REST API](rest-speech-to-text.md).