To use the latest Digital Messaging Manager features, save your existing Unified Messaging channel after a Pega Platform or Pega Customer Service update.

1. In the navigation pane of App Studio, click Channels.
2. In the Current channel interfaces section, click the icon that represents your existing Unified Messaging channel.
3. Click Save.

During the creation and configuration of a Unified Messaging channel in the Pega Platform application, the system displays the following warning message:

Define Unified Messaging security within the application definition. Couldn't retrieve the connection details.

• Contact Pega Support to obtain the security settings for your Unified Messaging channel, including the Manager ID and the Manager Key values for Digital Messaging Manager. You specify these settings in the application rule on the Integration & Security tab.
  For more information, go to Pega Support and also see Configuring Unified Messaging channel security.

The system removes the configured social messaging channels from Digital Messaging Manager for the Unified Messaging channel.

This issue occurs when you either update the Public Link URL field of your Pega Platform or change the values for the Manager ID or Manager Key in the application rule, after you create a channel and configure its IVAs for Apple Messages for Business, Facebook Messenger, SMS/MMS, or WhatsApp in Digital Messaging Manager. When you update the Public Link URL field or the Unified Messaging security settings for your channel, the system automatically generates a new unique consumer ID. As a result, all of your previously configured social messaging channels in Digital Messaging Manager are no longer available.

• If you need to change the Manager ID or Manager Key, it is important to first deregister your messaging channels. Before updating your Unified Messaging channel configuration in the application rule on the Integration & Security tab, ensure that you first remove your messaging channels for the consumer ID in Digital Messaging Manager for each IVA, for example, for Facebook Messenger, or WhatsApp. After you remove all of your messaging channels, you can safely update the Manager ID or Manager Key.
  For more information, see Creating a Unified Messaging channel.
• If you have updated the Manager ID or Manager Key before you removed your messaging channels, contact Pega Support and request that they remove all of your existing channels. In your service request, specify that your Manager ID or Manager Key was changed and you can no longer access your messaging channels.
  For more information, go to Pega Support.
• Ensure that you did not modify the Public Link URL field that is referencing your Pega Platform instance.
  For more information, see Configuring the public link URL.

When you attempt to add messaging channels that are already defined in an existing Unified Messaging channel to another channel, the operation fails and the system displays an error message.

1. Ensure that you first deregister the messaging channels, for example, Facebook Messenger, or WhatsApp from Digital Messaging Manager for the existing Unified Messaging channel.
   Note: Deleting a Unified Messaging channel from your system automatically deregisters all of its defined messaging channels from Digital Messaging Manager, for example, Facebook Messenger, or WhatsApp. For more information, see Creating a Unified Messaging channel.
2. Add the messaging channels to another Unified Messaging channel.
   For more information, see Creating a Unified Messaging channel.

When you import an application that includes your Unified Messaging channel, for example, from the development to the staging environment, the data from the development environment overwrites the channel information in the staging environment. When attempting to add the previous channel information back to the staging environment manually, the operation fails and the system displays an error message stating that the account for the messaging channel, such as WhatsApp, is already registered in the system.

Perform the following manual steps to ensure that messaging channels and their configuration are correctly imported from another environment:

1. In the development environment, in Digital Messaging Manager which displays a list of your configured messaging channels, manually remove all of your connections, for example, for WhatsApp.
2. Optional: To prepare the development environment for export, in the Unified Messaging security settings for Digital Messaging Manager, remove the Manager ID and Manager Key values.
   Note: You cannot reuse the Manager ID or Manager Key credentials in another environment, but you can save the credentials and add them back to your development environment after you export your application. For more information, see Configuring Unified Messaging channel security.
3. Import your application that includes the Unified Messaging channel from the development to the staging environment.
4. In the staging environment, specify the Manager ID and Manager Key fields for Digital Messaging Manager. These values consist of the Manager ID or Manager Key that you received for the staging environment.
   Note: You are required to use a separate set of Manager ID or Manager Key credentials for each of your environments. To obtain the security settings for your Unified Messaging channel, as well as the Manager ID and the Manager Key for Digital Messaging Manager, contact Pega Support. For more information, go to Pega Support and also see Configuring Unified Messaging channel security.
5. In Digital Messaging Manager, authorize and register the connections for your messaging channels, for example, for WhatsApp.
   For more information, see Creating a Unified Messaging channel.

If your Pega Platform system was installed on premises, ensure that you specified a value in the Public Link URL field of your system settings so that the Unified Messaging service can communicate with Pega Platform.

• Define a value in the Public Link URL field for your Pega Platform instance.
  For more information, see Configuring the public link URL.