Advantage Solutions Inc.

Our management, with the participation of our chief executive officer and chief financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this Quarterly Report. Based on this evaluation, our chief executive officer and chief financial officer concluded that, as of June 30, 2025, our disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed by us in reports we file or submit under the Exchange Act is (1) recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms, and (2) accumulated and communicated to our management, including our chief executive officer and chief financial officer, as appropriate, to allow timely decisions regarding required disclosure.

In designing and evaluating our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints, and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Changes in Internal Control Over Financial Reporting

We are in the process of implementing a new global enterprise resource planning (“ERP”) system, which is expected to occur in phases. During the second quarter of fiscal year 2025, we deployed the new ERP for operations outside of North America. As part of the implementation, we completed significant pre-implementation testing and post-implementation testing and monitoring. Furthermore, in conjunction with the ERP implementation, we modified certain existing internal controls over financial reporting and implemented new controls and procedures related to the new ERP system. While we believe that this new system will enhance our internal control over financial reporting, there are inherent risks in implementing any new system, and we will continue to evaluate these control changes as part of our control design and effectiveness throughout fiscal year 2025.

These were the changes in our internal control over financial reporting during the quarter ended June 30, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.