Web Messaging Deployment API: Customizing Launcher Position and Colors via PATCH Request

We are updating our custom agent desktop wrapper and need to push configuration changes directly to the Genesys Cloud Web Messaging deployment from our C# backend service. The goal is to dynamically adjust the launcher icon color and position based on the agent’s current status, which is handled in our local logic.

I am using the genesyscloud-webmessaging-deployment API endpoint. Specifically, I’m sending a PATCH request to /api/v2/webmessaging/deployments/{deploymentId}. The documentation says we can update the customizations object, but the behavior is inconsistent.

Here is the JSON payload I am sending:

{
 "customizations": {
 "launcher": {
 "position": "bottom-right",
 "color": "#FF5733"
 },
 "widget": {
 "theme": "dark"
 }
 }
}

When I send this, the API returns a 200 OK status code, which suggests the update was successful. However, when I load the widget in the browser, the launcher remains in the bottom-left position and the color is still the default blue. I have verified the deploymentId is correct by making a GET request first.

I’ve tried adding the if-match header with the etag from the GET response, but it doesn’t change the outcome. The response body confirms the position is now bottom-right, so the server thinks it updated. It feels like the client-side JavaScript bundle isn’t picking up the new config immediately, or maybe I am missing a specific field in the customizations schema.

Does anyone know if there is a cache invalidation step required after PATCHing the deployment config? Or is there a different endpoint I should be hitting to force the widget to reload its settings? We’ve been stuck on this for a few hours and the docs aren’t clear on the propagation delay.