Merge pull request #103481 from Grace-MacJones-MSFT/patch-28

(Azure CXP)  Note:  Azure does not support AES256

Author: PRMerger17

articles/app-service/configure-ssl-certificate.md

@@ -33,6 +33,9 @@ To follow this how-to guide:
 
 ## Private certificate requirements
 
+> [!NOTE]
+> Azure Web Apps does **not** support AES256 and all pfx files should be encrypted with TrippleDES.
+
 The [free App Service Managed Certificate](#create-a-free-certificate-preview) or the [App Service certificate](#import-an-app-service-certificate) already satisfy the requirements of App Service. If you choose to upload or import a private certificate to App Service, your certificate must meet the following requirements:
 
 * Exported as a [password-protected PFX file](https://en.wikipedia.org/w/index.php?title=X.509&section=4#Certificate_filename_extensions)