The "Untrusted Enterprise Developer" prompt will pop up when the user installs it for the first time. The solution is as follows

1. Open the settings function on the phone and select "General"

2. In General, select the "Profile and Device Management" function

3. In the enterprise application category in Profile and Device Management, select the file name of the enterprise application to be installed. (Same as the prompt when opening), click to enter

4. After entering the enterprise signature page, confirm the company name and application name in the enterprise signature, click Trust "Enterprise Signature Company Name" to return to the desktop, Reopen the app to use it.

If you want to know more about Apple’s corporate signature content, you are welcome to consult the micro diversion platform. The micro diversion platform provides Apple corporate signature website packaging and other services.