Due to a shift in product direction, we’re announcing the sunset of the Installed App Categories targeting criteria type. The targeting values obtained from the GET targeting_criteria/app_store_categories endpoint will no longer be a valid.
These changes will apply to both existing campaigns that were created prior to the sunset date, as well as any new campaigns. Existing campaigns that use this targeting criteria will no longer serve, while any new campaigns that try to use this targeting type will return an error.
These changes are scheduled to go into effect as early as 2018-05-01.
Twitter Ads API team