Merge pull request #27424 from cmcatee-MSFT/docs-editor/manage-self-service-purchases-1738025080

Update manage-self-service-purchases-admins.md

Author: Ruchika-mittal01

microsoft-365/commerce/subscriptions/manage-self-service-purchases-admins.md

@@ -44,6 +44,9 @@ For each purchase or trial subscription, you can see the following details:
 
 You can also control whether users in your organization can make purchases or sign up for trials. To learn how to manage these settings, see [Use AllowSelfServicePurchase for the MSCommerce PowerShell module](allowselfservicepurchase-powershell.md).
 
+> [!IMPORTANT]
+> Self-service purchases and trials can't be completely turned off at the tenant level with a single command. The [AllowSelfServicePurchase](allowselfservicepurchase-powershell.md) policy is managed on a per-product basis. You can only turn off self-services purchases and trials for the entire tenant by turning off each product individually. By default, all new products are set to allow users to make a self-service purchase.
+
 ## Before you begin
 
 - [Find out what type of billing account you have](../manage-billing-accounts.md#view-my-billing-accounts).