Mesmer has an Accessibility Bot that runs in the background to continuously check your application for any accessibility violations. But you can also manually run this bot if you need to quickly check your application for any violation.
Here are the steps to manually run the bot:
Click the Accessibility panel in the Drawer.
Click the three-dotted ... menu at the right-top portion of the panel.
Click Run Accessibility Bot. This will start an accessibility crawl that involves the bot.
Select the accessibility policy that the crawl will use and will apply to your application.
Click Run to start the crawl.
Using the Accessibility Bot to run another accessibility check
Once the crawl finishes, any violation in your application will be listed in the Accessibility panel.