diff --git a/windows/client-management/mdm/configuration-service-provider-reference.md b/windows/client-management/mdm/configuration-service-provider-reference.md
index 640eec77bc..e90f12b931 100644
--- a/windows/client-management/mdm/configuration-service-provider-reference.md
+++ b/windows/client-management/mdm/configuration-service-provider-reference.md
@@ -12,6 +12,8 @@ ms.date: 05/13/2019
 
 # Configuration service provider reference
 
+> [!WARNING]
+> Some information relates to prereleased products, which may be substantially modified before it's commercially released. Microsoft makes no warranties, expressed or implied, concerning the information provided here.
 
 A configuration service provider (CSP) is an interface to read, set, modify, or delete configuration settings on the device. These settings map to registry keys or files. Some configuration service providers support the WAP format, some support SyncML, and some support both. SyncML is only used over–the–air for Open Mobile Alliance Device Management (OMA DM), whereas WAP can be used over–the–air for OMA Client Provisioning, or it can be included in the phone image as a .provxml file that is installed during boot.