diff --git a/docs/getting-started/create-your-first-workflow/daily-weather-notifications/README.md b/docs/getting-started/create-your-first-workflow/daily-weather-notifications/README.md
index 26ff6358e..546dec57e 100644
--- a/docs/getting-started/create-your-first-workflow/daily-weather-notifications/README.md
+++ b/docs/getting-started/create-your-first-workflow/daily-weather-notifications/README.md
@@ -53,6 +53,7 @@ Here's a GIF of me following the steps mentioned above.
 
 ![Creating the OpenWeatherMap node](./images/creating-the-openweathermap-node.gif)
 
+**Note:** If you receive a 401 error when executing your node, your API key may not have been activated yet. API keys are activated automatically between 10 minutes and 2 hours after successful registration on OpenWeatherMap.
 
 ### 3. IF node