How to install profile in my service

Hello Teesiokhui,

Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. We understand you'd like to install a profile on your iPhone. Follow the steps here to install a profile: Install a configuration profile on your iPhone or iPad - Apple Support

"Install a profile

After you download a profile,* you’ll see the message Profile Downloaded or Enroll in [organization name]. To install the profile, follow these steps:

1. Open the Settings app.
2. Tap Profile Downloaded or Enroll in [organization name].
3. 
4. 
   
5. Tap Install in the upper-right corner, then follow the onscreen instructions.

* You can have only one profile ready to install at a time. For example, if you download a profile and don't install it, and then download a second profile, only the second profile is available to be installed.

About profiles installed by Mobile Device Management

If you're a system administrator, you can install profiles without any interaction from the user on devices enrolled in Mobile Device Management (MDM). To enroll a device in MDM, use Apple School Manager or Apple Business Manager, or manually install an enrollment profile."

We hope this helps.

Cheers!