What symbols can be included in client ID?

ana.vinogradova · September 12, 2025, 9:06am

For security reasons I have to validate that Client ID has only whitelisted symbols and we would need to know what symbols can come from auth0 in Client ID field. Could you please help?

teodor.andrei · September 12, 2025, 3:03pm

Hi @ana.vinogradova and welcome to the Auth0 Community!

The Client ID can only contain the following characters:

Uppercase letters: A through Z
Lowercase letters: a through z
Numbers: 0 through 9

Have a great day!
Teodor.

system · October 20, 2025, 6:47am

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.

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What symbols can be included in client ID?

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