# Test mode
Source: https://www.stedi.com/docs/healthcare/test-mode

***

title: Test mode
sidebarTitle: Test mode
-----------------------

Test mode provides a separate test environment where you can realistically simulate transactions in your Stedi account without PHI/PII and without sending any data to payers.

You can access test mode in your account at any time by toggling **Test mode** to **ON**.

## Send mock eligibility checks

<Tip>
  Mock transactions you send in test mode are free for testing purposes and
  won’t incur any charges from Stedi.
</Tip>

You can submit mock real-time eligibility checks through the manual [eligibility check form](https://portal.stedi.com/app/healthcare/checks/create). You can choose from a variety of predefined requests for well-known payers, including:

* Aetna
* Cigna
* UnitedHealthcare
* National Centers for Medicare & Medicaid Services (CMS)

For each mock request, Stedi returns a realistic mock benefits response for that payer so you can get a sense for the kinds of data you'll receive in production. The benefits responses include examples of copays, deductibles, and other patient payment responsibilities, as well as active coverage.

You can also submit a mock Medicare Beneficiary Identifier (MBI) lookup. MBI lookups allow you to use a patient's Social Security Number (SSN) to retrieve their MBI and complete benefits information from the Centers for Medicare and Medicaid Services (CMS).

### Test the Stedi Agent

The [Stedi Agent](/healthcare/eligibility-searches-view#retry-with-the-stedi-agent) resolves recoverable eligibility check errors automatically with the same best practices our Support team uses for troubleshooting. You can run a specific mock eligibility check to evaluate the Stedi Agent:

1. Create a new eligibility check and select **Stedi Agent** as the payer. Keep all other properties set to their defaults.
2. Submit the check. It's designed to fail so you can watch the agent resolve issues in real time. Specifically, it returns `AAA` error `73` (Invalid/Missing Subscriber/Insured Name).
3. Click **Resolve with Stedi Agent**. The agent runs in **Debug view** to fix the error and eventually produce a successful mock eligibility response.
4. Click **View check** to go to its details page and review the full mock benefits response.

## Review eligibility check results

After you submit a mock eligibility check, you can review all of the request and response details. This includes:

* A list of historical eligibility checks that you can filter by status, payer ID, date, and error code.
* The raw API request and response.
* A user-friendly benefits view designed to help you quickly understand the patient's active coverage and payment responsibilities, such as co-pay and deductible amounts.
* Eligibility check **Debug** view, which allows you to to systematically troubleshoot failed checks until you receive a successful response from the payer.

To review an eligibility check's results:

1. Go to the [Eligibility searches page](https://portal.stedi.com/app/healthcare/eligibility).
2. Click the eligibility search with the benefits information you want to view.

Stedi opens the eligibility search's **Overview** tab.

### Preview new benefits table

We've redesigned the benefits table for eligibility responses to make it faster and easier to read a patient's benefits. In test mode, you can only access the new benefits table by running the mock eligibility check for the Stedi Agent. Other mock checks use the classic benefits table layout.

To preview the new benefits table in test mode:

1. Run our mock eligibility check for the [Stedi Agent](#test-the-stedi-agent). Follow the instructions to troubleshoot the check using the Stedi Agent.
2. Click **View check** to go to the completed mock check's **Overview** page.
3. Go to the **Benefits** tab to try out the new benefits table layout.

![Benefits table overview](/images/providers/benefits-table-overview.png)

## Explore the Stedi portal

The test environment allows you to get familiar with Stedi's UI tools and learn more about how you can use Stedi to automate claims and eligibility check workflows.

## Not supported

The following features aren't currently supported in test mode:

* Raw X12 real-time eligibility checks
* Batch eligibility checks
* Transaction enrollment
* Insurance discovery checks
* Coordination of benefits (COB) checks
* Claims processing, including 837 claims submission, 275 claim attachment, 277CA claim acknowledgments, 835 ERAs, and 276/277 real-time claim status
* Custom mock data or payer selection