I found a new Payload attribute LegacyAppConfigAssetReference in AppManaged introduced in iOs 18.4 beta.
So I tried it, however no configuration is discoverted in the installed app.
--
configuration
{
"Identifier": "8c2af0b6-5ae0-5927-a1cd-bab5e4148bb8",
"Type": "com.apple.configuration.app.managed",
"Payload": {
"InstallBehavior": {
"Install": "Required",
"License": {
"Assignment": "Device",
"VPPType": "Device"
}
},
"AppStoreID": "535886823",
"LegacyAppConfigAssetReference": "ac35558f-aefc-5faf-8f64-1faaff993b96"
},
"ServerToken": "2abdc89492d89ca1a213ca61318ae0651c2b8de660c2847a44a3fb8ad9d9a8ad"
}
--
declaration/asset/ac35558f-aefc-5faf-8f64-1faaff993b96
{
"Identifier": "ac35558f-aefc-5faf-8f64-1faaff993b96",
"Type": "com.apple.asset.data",
"Payload": {
"Reference": {
"DataURL": "https://i3-oreore-ios-mdm.azurewebsites.net/asset_files/eyJpZCI6IjNkOTg2YWVjNzQ1MWJiYWZlZjJmZGU1NmZmYmJlYjdkLnBsaXN0Iiwic3RvcmFnZSI6InN0b3JlIiwibWV0YWRhdGEiOnsiZmlsZW5hbWUiOiJFbmNvZGVkQ2hyb21lUG9saWN5RXhhbXBsZS5wbGlzdCIsInNpemUiOjMyMjUsIm1pbWVfdHlwZSI6ImFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbSJ9fQ",
"ContentType": "application/plist"
}
},
"ServerToken": "7433f7c0c991a1943636ff7bd8949e88738c684ecbde347ac8a9c5b5c19dda14"
}
--
And the data type of the managed app configuration is application/plist
http https://i3-oreore-ios-mdm.azurewebsites.net/asset_files/eyJpZCI6IjNkOTg2YWVjNzQ1MWJiYWZlZjJmZGU1NmZmYmJlYjdkLnBsaXN0Iiwic3RvcmFnZSI6InN0b3JlIiwibWV0YWRhdGEiOnsiZmlsZW5hbWUiOiJFbmNvZGVkQ2hyb21lUG9saWN5RXhhbXBsZS5wbGlzdCIsInNpemUiOjMyMjUsIm1pbWVfdHlwZSI6ImFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbSJ9fQ
HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: max-age=31536000
Content-Length: 3225
Content-Type: application/plist
Date: Tue, 18 Mar 2025 22:59:40 GMT
X-Content-Type-Options: nosniff
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC '-//Apple//DTD PLIST 1.0//EN' 'http://www.apple.com/DTDs/PropertyList-1.0.dtd'>
<plist version="1.0">
<dict>
<key>EncodedChromePolicy</key>
<string>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</string>
</dict>
</plist>
Please note that this example plist is the same content as is described here: https://www.chromium.org/administrators/ios-mdm-policy-format/
After applying the declaration, the app GoogleChrome is successfully installed but no managed app configuration seems applied.
MDMAppManagement.plist in the sysdiagnose is like below:
plutil -p logs/MCState/Shared/MDMAppManagement.plist
{
"metadataByBundleID" => {
"com.google.chrome.ios" => {
"Attributes" => {
"Removable" => 0
}
"flags" => 1
"source" => "Declarative Device Management"
"state" => 7
}
"com.microsoft.skype.teams" => {
"Attributes" => {
"Removable" => 0
}
"flags" => 1
"source" => "Declarative Device Management"
"state" => 7
}
}
}
I also tried with our private apps and not applied...
How can we use this feature or check the configuration is applied?
Thank you,