Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
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The current Teams documentation only provides a supported mechanism to hide the success feedback message and does not document any option to suppress or customize the "Something went wrong. Try again" error banner. One possible reason is that the error message serves as client-side feedback when Teams does not receive a successful completion response for the card action. Without such feedback, users might assume their action completed successfully when Teams actually encountered a timeout or response-processing issue.
In similar discussions, the error has been observed in scenarios where Teams does not receive a successful response within the expected timeframe, even though backend processing may continue and eventually complete. As a result, the focus is typically on ensuring the action returns a successful response promptly, rather than on suppressing the Teams-generated error message.
Therefore, the supported mitigation is generally to ensure the action completes successfully within the expected response window, or to return an immediate success response and continue longer-running processing asynchronously.
You can refer to Error message in updated adaptive card message - Microsoft Q&A.
I hope this helps clarify the behavior.
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