Cognito existing user pool: Make the email address case insensitive

Question

Hey,

I have a user pool but currently, the email is set (by default) as case sensitive. I would like to change it to be case insensitive. Obviously, Cloudformation refuses to do it.
what should I do? What are the steps?
Also, BTW, what should I do to have the email being the official username?

Thanks,

Thomas

Answer

Hey Dylan,

First, thanks for the really detailed answer.

Regarding the manual changes suggested:
It looks like the step you're describing are through the old console. I tried it but since it's an existing pool, the editing is blocked and I can't change this setup.

Regarding the CF template,:
You're setting the CaseInsensitive flag at the attribute level, which is different than what I saw [here](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cognito-userpool-usernameconfiguration.html). Should I do both?

Thanks,

Thomas

Cognito existing user pool: Make the email address case insensitive

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