# Introducing automatic enrollment requests for failed CMS eligibility checks

> When an eligibility check to CMS fails with AAA error 41, Stedi now automatically submits the required transaction enrollment request.

Published Dec 2, 2025

Product: Eligibility checks

**Note**: This feature was previously called "CMS automatic enrollment." For more information on the name change, see this [changelog entry](https://www.stedi.com/changelog/cms-now-requires-attestation-for-medicare-eligibility-checks#automatic-enrollment-requests-for-cms).

The Centers for Medicare and Medicaid Services (CMS) requires that providers complete [transaction enrollment](https://www.stedi.com/docs/healthcare/transaction-enrollment) to run eligibility checks through Stedi or other clearinghouses.

When an eligibility check to CMS fails with [AAA error](https://www.stedi.com/docs/healthcare/eligibility-troubleshooting#payer-aaa-errors) `41` – meaning the provider isn’t enrolled with CMS for eligibility transactions – Stedi now automatically submits the required [transaction enrollment request](https://www.stedi.com/docs/healthcare/transaction-enrollment).

With this change, Stedi customers no longer need to track down and submit missing enrollments when a Medicare eligibility check fails. Stedi now handles that work for you. This reduces your operational overhead and helps ensure future Medicare checks will succeed.

For more information, see the related [announcement blog](https://www.stedi.com/blog/introducing-automatic-enrollments-for-failed-cms-eligibility-checks).