Thank you for posting your query on Microsoft Q&A. I am Saiteja from Q&A will be assisting you with your query.
Based on your description, I understand that you have customized the language using user flow and found the sign in description returns {0}
.
As per your expectation, in place of {0}
it should return your tenant's name which has not happened. This occurs when the custom language does not have any translated input to provide you at that place, it would return as {0}. In this situation the tenant's name or we can call it as the text is not readable format to the customized language (French) which returned {0}
.
Kindly check with the required text what has been provided as input at the place of tenant name and make it possible into readable format in the custom language to get the required output.
I hope this information is helpful. Please feel free to reach out if you have any further questions.
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