I have several days trying to customize the email verification of my project but it's been impossible to change anything.
I followed many times: https://docs.microsoft.com/en-us/azure/active-directory-b2c/custom-policy-get-started https://docs.microsoft.com/en-us/azure/active-directory-b2c/custom-email-sendgrid https://docs.microsoft.com/en-us/azure/active-directory-b2c/custom-email-mailjet
I uploaded the new custom policies B2C_1A_TrustFrameworkBase and B2C_1A_TrustFrameworkExtensions with all the changes described in the manual, but I still don't know why I can't even generate an application error and the default Microsoft email verification keeps working normally, is there any way to track what I might be missing?