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Mosaic, the new financial Solution to replace MMARS, went live February 23, 2026, marking a key milestone for financial professionals statewide. Building upon the original functionality available in MMARS, Mosaic introduces improvements to user experience and streamlines day-to-day activities for end-users across the Commonwealth.
Note: Commonwealth VPN or MAGNet required to access additional details related to cutover activities.
Training enrollment for Mosaic end-users began with Foundational (Navigational & Terminology) Training, as well as Business Role / Business Function learning paths. Through a combination of live instructor-led webinars, live virtual demo sessions, and self-paced video-based training, Commonwealth financial professionals are able to gain confidence in conducting their day-to-day activities and an understanding of new features available in Mosaic.
User Acceptance Testing (UAT) began in July and will continue through October. This critical stage in the transformation process allows end-users to perform “Day in the Life” activities within the new solution. These test scenarios ensure that Mosaic aligns with Commonwealth business requirements and end-user needs before go-live.
Mosaic took the stage at the annual MASSBUYS Conference at Gillette Stadium!
During the workshop, Comptroller McNamara and members of the BEST Functional team outlined the transformational benefits of SaaS software and some of the features users can expect to experience on Day 1 of the new solution to a record-breaking 300 attendees.
Participants received a sneak peek at the Mosaic interface and left the session with a fact sheet depicting some of the biggest changes and improvements users can look forward to in the Commonwealth’s new financial solution.
We held our first Change Agent Network (CAN) Forum on March 20 attended by nearly 200 Change Agents from across the Commonwealth. We discussed how CAN members will partner with the Readiness Team to develop agency readiness plans for the transition from MMARS to Mosaic.
The name Mosaic was chosen by BEST Program stakeholders and reflects the user-friendly interface of the new application: it is a “mosaic” of the various financial and business processes encompassed in the single solution.
In late November, the BEST Program onboarded its first cohort of Change Agents. These agency representatives will be key partners in ensuring a seamless transition to the new financial solution. Change Agent onboarding continued through March 2025 and consisted of four cohorts of Change Agents.
Over 35 Commonwealth agencies interface with MMARS. The BEST Program’s Technical team has worked with these agencies to establish a network of Technical Interface Contacts (TICs) and Business Interface Contacts (BICs) to support the review of interface specifications.
Change Agents are agency representatives and key partners in supporting the change journey; they work directly with their agencies to help end users understand why the change is happening, what’s in it for users, and what the benefits are for users and the Commonwealth. These individuals provide knowledge about current processes, tools, and procedures within their own agencies, as well as information on organizational culture.
Sprints bring together the expertise and input of agency FIEs participating in Workshops and Sprint Reviews. Sprint participants attend Conference Room Pilots (CRPs) at the end of each Sprint cycle, providing opportunities to see real-time demonstrations of Advantage 4 components, functionality and capabilities which will be configured in the new system. This represents the completion of the first of what will be seven Configuration Sprints, each occurring over a five-week period through Spring 2025.
Beginning of configuration and testing activities based on requirements confirmed by the BEST Program’s Functional Team and Financial Implementation Experts (FIEs) during Business Requirements Validation into action. This phase determines how opportunities for system improvement will be realized in the new Advantage 4.0 cloud-based application as it is implemented in the Commonwealth. Configuration Sprints will run through January 2025.
Beginning in January 2024, Financial Implementation Experts (FIEs) from agencies across the Commonwealth collaborated to identify opportunities to improve our current financial business processes and describe functionalities that they would like to see configured in the new Advantage 4 system. Hundreds of user stories were developed by FIEs to represent important financial capabilities for agencies across the Commonwealth. These stories included opportunities to enhance the functionality in the new financial management system.
The Program Management Office expands to 25 staff members and onboards 80 Financial Implementation Experts (FIEs) from across Commonwealth agencies.
Agreement negotiations commence in Spring 2023. Partnership with CGI for Phase 1 announced Winter 2023.
Executive Sponsors release RFR for Software and Systems Integration services (combined) for Phase 1 Financial Management & General Ledger.
Executive Sponsors release Request for Response (RFR) for a single ERP Software for combined Financials & HCM/Payroll functionalities. Evaluation Committee and Executive Sponsors determine that “best value” for the Commonwealth may need to be achieved through two separate Procurements for the replacement of MMARS and the replacement of HR/CMS.
Executive Sponsors release Request for Information (RFI) for Enterprise Resource Planning (ERP) replacement of MMARS and HR/CMS. Outreach conducted through Operation Work Groups (OWGs) with 159 agencies to gather information on current MMARS and HR/CMS opportunities for improvement.
Key Program stakeholders defined and expanded on BEST Program goals, objectives, purpose, and scope, which included the drafting, review, and finalization of use cases and other deliverables as part of the development and implementation of a broader strategic plan.
PMO conducts RFI for SW/SI vendors of SaaS ERP solutions to replace MMARS and HR/CMS and develops first iteration of an RFR for single ERP solution based on Advisory Committee recommendations.
The Office of the Comptroller forms interagency Advisory Committee for new ERP solutioning and begins establishment of the BEST Program Management Office (PMO).
Introduced in 2015, MassCareers is the e-recruitment SaaS solution used by the Commonwealth’s Executive Departments, and by certain Independent and Constitutional Offices and Higher Education entities. There are inbound and outbound nightly interfaces with HR/CMS to both pull in foundational and employee data as well as to send candidate data for hiring transactions.
Introduced in 2004, The Massachusetts Management Accounting & Reporting System (“MMARS”) is the financial system of record for the Commonwealth. MMARS is the Commonwealth branding for CGI Advantage Version 3.9.1, a web-based system for agency users to record all accounting transactions of the Commonwealth. MMARS interfaces with users across all 159 departments in all branches of government to perform a wide array of financial and labor cost management functions. MMARS was moved to the AWS cloud in 2020.
The Human Resources/Compensation Management System (HR/CMS) is the Commonwealth’s payroll services application first introduced during the early 2000s as highly customized, licensed software hosted on premise at a Commonwealth facility. Since its implementation, the customization of HR/CMS has been reduced considerably from periodic upgrades made to the system. In 2019, the HR/CMS application was moved to the AWS cloud with no changes to the software’s core code.
Introduced in 1992, the Commonwealth Information Warehouse (“CIW”) is a central data source gathered from the Commonwealth’s financial, HR and payroll systems: MMARS, HR/CMS, and LCM. Agency users can run custom queries and export data to Access or Excel. It is a critical source of financial and payroll data from which data are extracted to feed department-specific applications or to meet user needs.
Executive Sponsors to release RFR for Software and Systems Integration services (combined) for Phase 2, Human Capital Management & Payroll.
After a robust procurement and evaluation process, the Commonwealth has chosen a joint Accenture-Workday proposal to be the Apparent Successful Bidder (ASB) to be implementation partner and solution vendor for Phase 2!
ASB status means that the procurement team has identified Workday and Accenture as having submitted a response to the Request for Proposals that reflects the best value for the Commonwealth, providing the optimal solution for all of our users and employees.
