Many times we find it difficult to figure out why the IPA installation failed when using ad-hoc installation link.  A possible reason may be your device UDID is not included in the distribution profile.  Here’s how to verify if your UDID is included in iOS Distribution profile.

 

• Generate ad-hoc IPA from Xcode.
• Cd to IPA file.
• Run Command: unzip <appname>.ipa.   This will extract the content of ipa to Payload folder
• cd to Payload.
• cd to <appname>.app
• open embedded.mobileprovision in TextEditor.
• Or Run command:  security cms -D -i ./embedded.mobileprovision
• Look for <key>ProvisionedDevices</key> or  <key> UDID </key>
• Your device udid must be listed there.