add

Author: cloga

articles/machine-learning/prompt-flow/tools-reference/troubleshoot-guidance.md

@@ -197,14 +197,4 @@ In prompt flow, on flow page with successful run and run detail page, you can fi
 
 You may encounter 409 error from Azure OpenAI, it means you have reached the rate limit of Azure OpenAI. You can check the error message in the output section of LLM node. Learn more about [Azure OpenAI rate limit](../../../ai-services/openai/quotas-limits.md).
 
-:::image type="content" source="../media/faq/429-rate-limit.png" alt-text="Screenshot that shows 429 rate limit error from Azure OpenAI." lightbox = "../media/faq/429-rate-limit.png":::
-
-## Connection run related issues
-
-### Why I can't find the custom connection in the connection list in AI studio?
-
-To use custom connection created in AI studio in prompt flow, you need add following extra meta data to the connection:
-
-- azureml.flow.connection_type: Custom
-- azureml.flow.module: promptflow.connections
-
+:::image type="content" source="../media/faq/429-rate-limit.png" alt-text="Screenshot that shows 429 rate limit error from Azure OpenAI." lightbox = "../media/faq/429-rate-limit.png":::