Merge pull request #204273 from asergaz/iotsupporthelp-historylogs

IoT Support Help - log retention periods note

Author: PRMerger9

articles/iot-fundamentals/iot-support-help.md

@@ -25,6 +25,9 @@ Explore the range of [Azure support options and choose the plan](https://azure.m
 * [Azure portal](https://portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/overview)
 * [Azure portal for the United States government](https://portal.azure.us)
 
+> [!NOTE]
+> Azure IoT solutions depend on services which may have different log retention periods. To help resolve your issue, please open a support request as soon as possible to help with troubleshooting.
+
 ## Post a question on Microsoft Q&A
 
 For quick and reliable answers on your technical product questions from Microsoft Engineers, Azure Most Valuable Professionals (MVPs), or our expert community, engage with us on [Microsoft Q&A](/answers/products/azure), Azure’s preferred destination for community support.