The https part of your keyword imposes strict server requirements:
itms-services://?action=download-manifest&url=[URL] protocol is a special URL scheme used by iOS to facilitate "Over-the-Air" (OTA) installation of proprietary or in-house enterprise applications. Apple Support Quick Implementation Guide Itms-services Action Download-manifest Amp-url Https
Manually update proprietary in-house apps. For proprietary in-house apps distributed using a device management service, you can us... Apple Support itms-services://?action=download-manifest Not Work in IIS The https part of your keyword imposes strict