Microsoft intune to Jamf migration

Your first task should be to get user-initiated enrolment working. That doesn't require a pre-stage enrolment but is necessary if you want to shift Macs from Intune to Jamf Pro Cloud without erasing the Mac's drive and re-installing the OS.

You don't say if you are enrolled in Apple Business Manager but I assume you are. Getting ADE enrolment working is your second task.

Have a look at https://learn.microsoft.com/en-us/mem/intune/user-help/unenroll-your-device-from-intune-macos for a good guide to getting the Macs out of Intune. Once you have done that you can get them to enrol in Jamf Pro. You might even want to keep the Macs in Intune and use Intune for device compliance.

I strongly suggest reaching out to your JAMF Success Representative. There should also be a jump start that comes with your JAMF purchase where JAMF helps you get everything setup and gives you next steps.

The first few things you want to do are:

1. Set JAMF in Apple Business/School Manager
2. Setup your LDAP server(s) in JAMF
3. Setup Automated Device Enrollment in JAMF
4. Configure a Prestage Enrollment in JAMF
5. Enable User initiated enrollment
   1. You will not get full management over devices not enrolled with Automated Device Enrollment, but this is what would let you enroll existing devices all be it with limited management.

This will enable you to automatically enroll devices in to JAMF at activation. 

You will need to get communication and directions together for your users unless you plan on having techs handle the Microsoft Endpoint Manager unenroll and JAMF enroll. The only way to automate the enrollment in to MDM is via Automated Device Enrollment which requires macOS to be reinstalled.

To migrate devices between MDMs

The not recommended way, but avoids reinstalling macOS.

1. Tell your existing MDM to remove the MDM profile from the device
   1. If the MDM profile is user removably, users can remove the MDM profile from System Preferences (System Settings for Ventura) > Profiles
2. Tell your users to navigate to the JAMF Pro enrollment portal and enroll their devices

The Recommended way which is fully automated, but reinstalls macOS. This also requires devices to be in Apple Business Manager, and JAMF to be the default MDM

1. Tell your current MDM to issue an erase all contents and settings MDM command
2. During macOS Activation users will be redirected to JAMF and their devices enrolled.

If you dont have your devices in Apple Business Manager things get really sloppy, and are totally hands on. Blame all of this on Apple, there used to be a lot more options than we have now.

10 Things to Consider When Switching MDM Providers | Jamf

Intro to planning your MDM migration - Apple Support