From 89501a57dccc1c4e2dab84be443e4c926bf882e7 Mon Sep 17 00:00:00 2001
From: Hassieb Pakzad <68423100+hassiebp@users.noreply.github.com>
Date: Tue, 12 Aug 2025 10:44:53 +0200
Subject: [PATCH] fix(client): add warning message if OTEL_SDK_DISABLED

---
 langfuse/_client/client.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/langfuse/_client/client.py b/langfuse/_client/client.py
index d205e5d51..6aba529fc 100644
--- a/langfuse/_client/client.py
+++ b/langfuse/_client/client.py
@@ -221,6 +221,11 @@ def __init__(
             self._otel_tracer = otel_trace_api.NoOpTracer()
             return
 
+        if os.environ.get("OTEL_SDK_DISABLED", "false").lower() == "true":
+            langfuse_logger.warning(
+                "OTEL_SDK_DISABLED is set. Langfuse tracing will be disabled and no traces will appear in the UI."
+            )
+
         # Initialize api and tracer if requirements are met
         self._resources = LangfuseResourceManager(
             public_key=public_key,