@maxime-aerts There may be a way to control the format the verification is sent.

Please:

Go into the Admin UI Select Tenants Select Edit for the Tenant you want to change Select the Advanced tab Scroll down to the External identifier generation section Find Email verification Choose Digits

There are other settings that may work for you as well depending on what you are trying to do. Please test it out and let me know if this works for you. Please keep in mind, you will be reducing the randomness and in turn the security of such identifiers.

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