added dates

Author: Justinha

articles/active-directory/authentication/concept-authentication-default-enablement.md

@@ -53,7 +53,7 @@ The following table lists each setting that can be set to Microsoft managed and
 
 | Setting                                                                                         | Configuration |
 |-------------------------------------------------------------------------------------------------|---------------|
-| [Registration campaign](how-to-mfa-registration-campaign.md)                                    | Beginning in Sept, 2023, enabled for text message and voice call users. |
+| [Registration campaign](how-to-mfa-registration-campaign.md)                                    | From Sept 25 to Oct 20, 2023, the registration campaign will be enabled for text message and voice call users across all tenants. |
 | [Location in Microsoft Authenticator notifications](how-to-mfa-additional-context.md)           | Disabled      |
 | [Application name in Microsoft Authenticator notifications](how-to-mfa-additional-context.md)   | Disabled      |
 | [System-preferred MFA](concept-system-preferred-multifactor-authentication.md)                  | Enabled       |

articles/active-directory/authentication/how-to-mfa-registration-campaign.md

@@ -78,7 +78,7 @@ To enable a registration campaign in the Microsoft Entra admin center, complete
 
 1. Sign in to the [Microsoft Entra admin center](https://entra.microsoft.com) as at least an [Authentication Policy Administrator](../roles/permissions-reference.md#authentication-policy-administrator).
 1. Browse to **Protection** > **Authentication methods** > **Registration campaign**.
-1. For **State**, click **Microsoft managed** or **Enabled**. In the following screenshot, the registration campaign is **Microsoft managed**. That setting allows Microsoft to set the default value to be either Enabled or Disabled. For the registration campaign, the Microsoft managed value is Enabled for voice call and text message users. For more information, see [Protecting authentication methods in Azure Active Directory](concept-authentication-default-enablement.md).
+1. For **State**, click **Microsoft managed** or **Enabled**. In the following screenshot, the registration campaign is **Microsoft managed**. That setting allows Microsoft to set the default value to be either Enabled or Disabled. From Sept 25 to Oct 20, 2023 the Microsoft managed value for the registration campaing will be **Enabled** for voice call and text message users across all tenants. For more information, see [Protecting authentication methods in Azure Active Directory](concept-authentication-default-enablement.md).
 
    ![Screenshot of enabling a registration campaign.](./media/how-to-nudge-authenticator-app/registration-campaign.png)