Hi @Christoph Huber ,
Thanks for reaching out.
As mentioned, the key for this error message is not present. As a workaround you can configure the following metadata which can be used to display the error messages upon code verification failure if user provided an invalid code and ask user to provide correct date.
UserMessageIfVerificationFailedRetryAllowed
For this particular key, you can you post this idea at the Azure Feedback Portal, which is monitored by the product team for feature enhancements.
Hope this will help.
Thanks,
Shweta
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