Moving from MiWAM to MiUI

As a Third-Party Administrator (TPA), will I automatically have access to all the clients that I currently have in MIWAM when MiUI launches?

As part of the transition to MiUI, UIA will attempt to convert all Employer-TPA relationships that currently exist in MiWAM into MiUI, including WOTC TPAs. The exception is if the employer has two or more assigned TPAs in MiWAM. In this case, the employer will not be added to the TPA’s record, and must grant permission to that TPA after the scheduled launch of MiUI on February 23, 2026. They will need the TPA’s new MiUI TPA ID to complete this action. TPAs with the proper authorization will also be able to associate themselves with an employer on their own outside of the Automatic Assignment process.

Though Employer-TPA relationships are being brought over from MiWAM, the specific roles that TPAs were previously assigned are not. Details on which TPAs will receive which roles can be found in the TPA Assignment & Association Quick Reference Guide on MiUI University.

How will the two phases affect employers and Third-Party Administrator (TPA)s?

For a few months after the Tax Phase of MiUI goes live, employers and TPAs will be performing unemployment insurance duties in two systems. Tax functions will be completed in MiUI, while benefits functions will still be completed in MiWAM. It is essential all employers and TPAs have a MiWAM account. Both systems will be used to deliver alerts and updates throughout this interim period, providing clear communication about roles and responsibilities.

If I am both an employer and TPA in MiWAM, will I have multiple Activation Codes?

Yes. If you are an employer who is also a TPA in MiWAM, or a TPA who is also an employer, you will have two Activation Codes.

If you are both an employer and a TPA, you will need to log in using your Master access security to see both activation codes on your homepage.

What is account activation?

Account activation refers to the process of adding a new user to an existing account and granting access to that account after Go Live.

What is account initiation?

Account initiation is the one-time process to access an existing MiWAM account that was transferred to MiUI at Go Live on February 23, 2026.

What is the difference between the MiUI Activation Code found in MiWAM used for account initiation and the Activation Code for new users?

The MiUI Activation Code found in MiWAM is used to initiate your MiUI account. It is used for existing accounts that have been transitioned from MiWAM to MiUI. The code is located in the MiUI Activation Code tab of your MiWAM account.

The Activation Code for new users is required when users are added to MiUI and assigned within an employer or TPA account. New users will receive an email with an Activation Code and steps to follow to activate their account.

New users will require:

Their own MiLogin for Business account
The same credentials including:
- Employer Account Number (EAN)
- FEIN
- SSN (TPAs only)

What should I do if my MiUI Activation Code doesn't work?

The Office of Employer Ombudsman (OEO) can help initiate your MiUI account. If you have questions, call OEO at 1-855-484-2636, then select Option 4.

What will Employers and TPAs need to activate their new user MiUI account after Go Live?

Employers and third-party administrators (TPAs) will need a few pieces of information to activate their MiUI account after Go Live:

Employers will need:

Employer Account Number (EAN).
Federal Employer Account Number (FEIN).
MiUI Activation Code from the Activate User Profile email.

TPAs will need:

FEIN or Social Security Number (SSN).
MiUI Activation Code from the Activate User Profile email.

What will Employers and TPAs need to initiate their MiUI account after Go Live?

Employers and third-party administrators (TPAs) will need a few pieces of information to activate their MiUI account after the new computer system launches on Monday, Feb. 23:

Employers will need:

Employer Account Number (EAN).
Federal Employer Account Number (FEIN).
MiUI Activation Code found in their MiWAM accounts.

TPAs will need:

FEIN or Social Security Number (SSN).
MiUI Activation Code found in MiWAM.

When can I access my Activation Code in MiWAM?

The MiUI Activation Code tab will appear on your MiWAM landing page when MiUI goes live on February 23, 2026. When it’s time to access MiUI for the first time, log in to MiWAM and retrieve your MiUI Activation Code in order to initiate your MiUI employer or TPA account.

Note: If you are a TPA who is also a Michigan employer, you will need to log in using your Master access security to see both Activation Codes on your homepage.

Where is my MiUI Activation Code located in MiWAM?

Employers and TPAs should log into MiWAM to access the 8-digit MiUI Activation Code. Users with Master or Limited access security roles will be able to see the MiUI Activation Code tab on the MiWAM landing page (pictured below).

The MiWAM landing page. At the bottom of the page, the "MiUI Activation Code" tab is highlighted in red.

Since the MiWAM system will remain up and running for UI benefits temporarily, will employers still need to access MiUI to set up their Third-Party Administrator (TPA) roles for both tax and benefits?

Yes, TPAs will require access to both MiWAM and MiUI during the Two System Transition period. TPAs will use their existing MiWAM user ID and password to access MiWAM. TPAs will create a MiLogin account for each user to access MiUI. There is no user ID or password synch between MiWAM and MiUI during this period:

Within MiUI, TPAs can:

Reports and Payments
- Manage Reports and Payments
- Make a Voluntary Payment
- View Yearly Wage Evaluation
Account Maintenance
- View Tax Rate History
- Request IRS Certification
- Request Disclosure of Account
- Submit Notice of Change
- File Acquisition of Business
- Apply for Seasonal Designation
Tax Issues and Assessments
- Submit Tax Protest or Appeal
- Request for Waiver
- Request Clearance of Account

Within MiWAM, TPAs can:

Account Maintenance
- Request Employment Decision
Benefit Services
- View Benefit Charges & Credits
- Report Employee Payments
- View Determinations and Decisions
- Request Seeking Work Waiver
- Request Waiver Extension
- Report Refusal of Offer to Work
For more information, view the Two Transition Period Quick Reference Guide.

What employer data from MiWAM is being transferred to MiUI?

All employers with MiWAM accounts will have the past 10 years of account data transferred to MiUI.

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Moving from MiWAM to MiUI