Integrating third party charts

While it's possible to integrate Appian UIs into other systems by using embedded interfaces, the opposite is not supported. If your third party system supports image generation, you could pass the data to it somehow so that it returns an image that you can display in your Appian UI. Failing that, you could make your Appian data available in a database that is accessible by your third party system and provide a link to where the charts are located.