Web Messaging deployment API ignores custom CSS in body

NICE CXone API & Integrations
1

I’m trying to update our Web Messaging deployment via the C# SDK to move the launcher to the top right and change the primary color. The UI works fine, but I need this automated in our deployment pipeline.

I’m using the UpdateDeployment method with a WebMessagingDeploymentUpdateRequest. Here is the JSON payload I’m constructing:

var request = new WebMessagingDeploymentUpdateRequest
{
 Name = "Prod Messaging",
 Enabled = true,
 Customizations = new WebMessagingCustomizations
 {
 PrimaryColor = "#FF5733",
 LauncherPosition = "top-right",
 WidgetTitle = "Support"
 }
};

var result = await _genesysClient.WebMessaging.DeploymentsApi.UpdateDeploymentAsync(deploymentId, request);

The API returns a 200 OK. The response object shows the color is set correctly. But when I open the widget in the browser, it’s still blue and bottom-right.

I checked the docs which say:

“Customizations are applied immediately upon update.”

Things I’ve tried:

  • Hard refresh with cache disabled. Still default styles.
  • Calling GetDeployment immediately after update. The JSON returns the correct hex code.
  • Waiting 10 minutes. No change.
  • Checking the deployment ID. It matches the one in the UI.

Is there a separate step to publish or build the CSS? Or is the Customizations object nested differently in the C# SDK than the spec implies?