Hi @Farhan Khadpolkar ,
You could use follow this to replace your web.config.
<add key="ida:Tenant" value="<<tenant-name>>" />
<add key="ida:ClientId" value="<<applicationid>>" />
<add key="ida:AadInstance" value="https://aicdb2c.b2clogin.com/{0}/{1}/v2.0/.well-known/openid-configuration" />
<add key="ida:RedirectUri" value="http://localhost:58851/" />
<add key="ida:SignUpPolicyId" value="<<signup-policy-name>>" />
<add key="ida:SignInPolicyId" value="<<signin-policy-name>>" />
<add key="ida:UserProfilePolicyId" value="<<editprofile-policy-name>>" />
You could refer to below articles:
https://github.com/Zen3InfoSolutions/B2C-WebForms-DotNet
https://learn.microsoft.com/en-us/azure/active-directory-b2c/tutorial-register-applications?tabs=app-reg-ga
Best regards,
Yijing Sun
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