Hi Kim,
Glad to you were already able to figure out the issue. Feel free to write back if any other issues arise when using the AdWords API.
Hi Rita,
Currently, App Campaigns are not yet fully supported in the AdWords API. What is currently supported are Universal App Campaigns as you may see in this
guide. That being said, applying ad groups to UACs is currently not supported. We also do not have any further information as to when the AdWords API can fully support App Campaigns and the addition of ad groups. For now, you may continue to follow our
blog for any announcements or updates regarding this topic.