Explore the intersection of business and app development. Discuss topics like device management, education, and resources for aspiring app developers.

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After the Provisioning Profile expires, application cannot be used after reinstallation
My company signed the application with enterprise certificate, the Provisioning Profile expired on March 20, 2025. Some iPhones didn't update the application before the expiration. We have update the Provisioning Profile and repackaged application. However, these iPhones still can't use the application after reinstalling the new ipa. After opening the application, the screen is blank and then flashes back without any error prompt. Restarting iPhone didn't help.
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Apr ’25
IOS 18.3 does not accept the trusted CA's certificate after changed the website cert
Hello, wehave some Iphone in the family and noticed a strange issue: On a website the site admins renewed the webserver cert, and now most of the IOS devices( Iphone 15 / 15 Pro Max / Ipad 10) doesnot trust in the new cert, while the apple trustsin the rootCA webste: https://etitan.hu RootCA CN = NetLock Arany (Class Gold) Főtanúsítvány ios 18 trusted CAs:https://support.apple.com/en-us/121672 So any idea whats wrong ? On windows everything is OK !
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697
Feb ’25
RCS firewall domains & ports
Hi everyone, I’m working as an IT engineer in the cruise industry and need to troubleshoot passenger complaints about Apple’s new RCS messaging feature (introduced with iOS 18). Could someone help confirm which domains and ports iPhones use when they send RCS messages? My firewall team wants specifics: domains (or subdomains) that need whitelisting and the ports involved. Any official or community-sourced info would be super helpful—thanks in advance!
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162
Aug ’25
No such module 'DeviceManagement'
I'm working on the companion iOS app for my purpose-built MDM system. when I use the following in a .swift file: import DeviceManagement I get the build issue: No such module 'DeviceManagement' When I attempt to add the framework in the Frameworks, Libraries, and Embedded Content settings, DeviceManagement doesn't even show up in the available frameworks. Alll the documentation I can find suggests that is the correct framework to import, but I'm new to this and not sure if I'm just missing something. Some AI help is suggesting that the culprit might be v16.x of Xcode, but I don't know enough to prove that correct or not. Any ideas on why Xcode believes there is no such module? Is there documentation that might help me learn how to make that framework available for my project?
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Jun ’25
RCS firewall domains & ports
Hi everyone, I’m working as an IT engineer in the cruise industry and need to troubleshoot passenger complaints about Apple’s new RCS messaging feature (introduced with iOS 18). Could someone help confirm which domains and ports iPhones use when they send RCS messages? For the fortigate and palo alto firewalls I need specifics: domains (or subdomains) that need whitelisting and the ports involved. Any official or community-sourced info would be super helpful—thanks in advance!
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316
Aug ’25
Using MDM App to read/update management properties
We are using management properties in DDM to assign configurations and assets to a particular device, and one of those properties should be updated by a business app on the device. For example, if the business application is not launched every 30 days, then a predicate should evaluate to false and the device put into single app mode to force the application to run. If, however, the app is launched any time in the 30 days, then the counter should be reset. Essentially trying to enforce that users in the field cannot work offline for extended periods of time without getting the latest dataset from the company. The single app mode part is very clear and the predicate to assign the configuration based on the date in the management property seems logical. However, the question is: Can a predicate be built upon data that is updated by the custom MDM app? ie: If the app is launched on the device without connectivity, can a property be updated that the DDM predicate system can access that can be used as an input property? such as "last launch time" or "last check-in" of the custom app? Alternately, could the custom MDM app read any of the management properties set via DDM? That way the user would know the value that the DDM configuration for restricting the device.
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Jan ’25
App Profile Expires Earlier than Provisional Profile
I created a provisional profile from apple developer portal for my iOS app. The expiry date shown in the profile is 21-April 2026. However, when I build the app with this provisional profile the expiry date shown in the app is 11 Dec, 2025. My iOS distribution certificate expires only in November 2026. I see a embeded.mobileprovision profile inside the app, and it has an expiry of 11-Dec-2025. I did a clean build,, cleared unnecessary profiles from profile folder, created a new provisional profile and tried, but nothing seems help. We have a few apps, and no other app has this issue. We do annual release of all apps together for provisional profile renewal. As this app expiry is different, it will cause lot of difficulty for us next year. Will you please help me to resolve this issue? Thanks.
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203
Apr ’25
Declarative Management Activations do not recover from failure
Hello All, I am currently developing a mobile management system using declarative management and for the most part it is pretty great. There is one consistent issue I have run into and it comes when testing VPP app installs with not enough licenses. When my server detects that it can't provide a license ID it will return a 404, which causes the rest of the DM syncing to stop, and the activation to throw an error. Per the documentation for using simple activation: An array of strings that specify the identifiers of configurations to install. A failure to install one of the configurations doesn’t prevent other configurations from installing The above would imply that if a config fails it should not affect anything else (aside from possibly reporting an error. Am I returning the wrong error code for it to continue or is the behavior correct and the documentation is wrong? Any additional info would be useful
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Sep ’25
BUG: "Submit" button not working on Careers site / life critical for many people
this issue is posted on Community multiple times. I am here out of desperation after opening a case on IT support. when a user fills out their application, uploads resume - all of that info is saved. however, when you click "submit," the button does not work. I (along w/tons of other ppl) have tried all the usual remedies: clear cache, try different browsers, try different networks, try different devices - NOTHING WORKS. this is maddening b/c it is affecting my life and career. this is an urgent need. it is also disappointing that there is no tech support for the Careers site! this was confirmed by IT support today, they could not find anything and sent me here instead. please help! I was an apple contractor last year and want to come back but can't even submit my application.
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May ’25
Guidance on Integrating with Apple GSX API
Hello all, I’m hoping someone here has gone through the process of integrating an ERP system with the Apple GSX API and can offer some guidance. We’re currently working with an AASP who asked us to integrate our ERP with the Apple GSX API. It’s the first time for both of us, and we’re a bit stuck on how to properly get started. The AASP contacted their regional manager, who confirmed that an NDA and an Apple Developer Account would be necessary. However, he hasn’t handled this type of integration before and is still seeking internal guidance. That was a few months ago, and due to his workload, the AASP hasn’t heard back from him yet. Meanwhile, we’ve already enrolled in the Apple Developer Program and opened a support case, but we’ve been redirected to the forums since our case goes beyond standard support. So now we’re trying to understand: What steps need to be completed by the AASP? What are the steps we, as the ERP provider, need to take in order to receive API access? Are there any specific documents, applications, or technical requirements we should prepare in advance? We’d really appreciate any guidance or insight from others who have gone through this process — or even partial answers to help us move forward. Thanks in advance for your time!
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May ’25
Enterprise App Crashes on iPad Pro (4th Gen, 11") When Installed via Web
Hi, I’m an enterprise developer, and we distribute our internal iOS app through a direct download link on our company website (not via App Store or TestFlight). The app is properly signed and works fine on most devices including iPhones and regular iPads. However, on iPad Pro 11-inch (4th generation), the app crashes immediately upon launch when installed via the website. Interestingly, if we install the exact same app via Xcode, it runs without issue on the same device. We also tested a third-party enterprise app called "Taipei On", and it showed the same crash behavior when installed via direct web download on the same iPad model. This leads us to believe the issue may be more widespread or specific to this iPad Pro model or recent iOS versions. Furthermore, some of our users with iPhone 15 devices have started experiencing similar crashes recently, even though they had no issues before. Is this a known issue related to enterprise app distribution or IPA installation behavior on certain devices? Any advice or insight from the Apple team or other developers would be appreciated. Thanks!
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144
May ’25
MDM InstallProfile Custom Configuration profile unsigned
The MDM was installed correctly and other commands are working fine. I have tried to send the InstallProfile with custom configuration to the device, but it was displayed as not signed. How to sign the payload for InstallProfile command and where it should be included in the payload / command? The payload I sent to a mac with MDM installed: <?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>Payload</key> <data> BASE64_HERE </data> <key>RequestType</key> <string>InstallProfile</string> </dict> </plist> Decoded base64 from the payload above was: <?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>PayloadContent</key> <array> <dict> <key>PayloadContent</key> <dict> <key>com.example.myapp</key> <dict> <key>test_key</key> <string>test_value</string> </dict> </dict> <key>PayloadDisplayName</key> <string>My App Configuration</string> <key>PayloadIdentifier</key> <string>com.org_name.mdm.profile.uq_id_here</string> <key>PayloadType</key> <string>com.apple.ManagedClient.preferences</string> <key>PayloadUUID</key> <string>UUID4 HERE</string> <key>PayloadVersion</key> <integer>1</integer> </dict> </array> <key>PayloadDisplayName</key> <string>App Configuration Profile</string> <key>PayloadIdentifier</key> <string>com.example.myapp.config</string> <key>PayloadOrganization</key> <string>ORG NAME</string> <key>PayloadType</key> <string>Configuration</string> <key>PayloadUUID</key> <string>ANOTHER UUID4 HERE</string> <key>PayloadVersion</key> <integer>1</integer> </dict> </plist> System logs from Device: [*] Processing server request: InstallProfile for: <Device> [ERROR] System keychain reported it is unavailable but will proceed as if it is. [*] === CPF_InstallProfile === com.example.myapp.config (user: <Computer>) (source: 'MDM') [*] >>>>> Sending HTTP request (PUT) [Acknowledged(InstallProfile) [*] <<<<< Received HTTP response (200) [Acknowledged(InstallProfile) [*] Processing server request: ProfileList for: <Device> [*] >>>>> Sending HTTP request (PUT) [Acknowledged(ProfileList) [*] <<<<< Received HTTP response (200) [Acknowledged(ProfileList) Also the ProfileList didn't include the installed profile. Is it because it was unsigned? How it should be signed?
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Feb ’25
allowCamera on Unsupervised devices
Is there any mechanism to restrict camera usage on a user-owned device, once they have opted in, consented to the restriction, and installed a management profile? Documentation suggests it was possible with allowCamera, but has be deprecated on unsupervised devices. Am I understanding correctly that it's simply not possible anymore unless the device is supervised?
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May ’25
app to restriction student phone use in schools
I work at a school in NYC and have a software idea that could better support the new NYC phone ban law than current market options (i.e. Yondr pouches). Right now at my school, students and staff scan a QR code upon entering the building to indicate that they are in the building. They scan again on the way out to indicate they've left the building. This is super helpful for attendance, particularly in emergency situations (fire drills, etc). Imagine if when students scanned their QR code, it also activated an app similar to Opal or ScreenZen, but with an admin preset whitelisted apps. The idea is that this app would default deny access to all apps on students' phones except the admin preset whitelisted ones such as Phone, Calculator, etc. Depending on the age/needs of the student, other apps like Spotify, or medical apps could also be whitelisted. My question is -- is this idea possible to create? We would need admin preset controls to create the preset whitelist. We can't have students picking their own restrictions, as we know most would opt to not restrict at all. We would need an admin dashboard so teachers/admin can see which students have activated the app in the building, and which may be trying to sneakily avoid it. We would ideally need to be able to whitelist both system apps like Phone and Calculator, as well as non-system apps such as Spotify (and medical apps -- we have some students who manage/monitor their Diabetes with an app). I don't have a background in software. I'm a math and health teacher. I've experimented with trying to have friends who majored in CS to create this app for me, but they've all either struggled/lost interest. So I'm also looking for a business partner in this venture. If anyone has any guidance here, it would be so helpful! My boss (Head of School) is super interested in this idea and significantly prefers it to every other alternative that he has encountered. The problem is this idea does not exist yet! Note: I know this is a super similar idea to the app and product "Brick". Notably, though, Brick does not have the ability for admin preset controls, or the admin dashboard. We reached out to the company to see if they're create this for us and they said it's a back burner idea that they're aware of, but it's not a priority for them right now. Thank you for any guidance!
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Oct ’25
How to change the expiry date of existing iOS Distribution (In-House) Certificate
Hi Team, Could you please share how to change/extend the expiry date of the existing iOS Distribution (In-House) certificate? Since the membership renewal date is in March 2026 and the iOS distribution(In-House) certificate expiry date is in Feb 2026. We use to distribute the mobile apps using the product intunes (Company portal) and via direct download link. Please suggest since this certificate is used by multiple mobile apps by the users which can affect lot of iPhone users? Thank you in advance Deepak
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