question

Please take a look to Get started with custom policies in Azure Active Directory B2C. It covers the basic setup, authenticating with local (Azure AD B2C directory) accounts and facebook accounts.

@alfredorevilla-msft Similar issue as mentioned by others 1. Created custom policy 2. Able to run policy "B2C_1A_signup_signin" and create user 3. Post signup token created successfully and redirected to jwt.ms and able to see the created username in the token. 4. When i try to signin with the same created user it shows error message "The username or password provided in the request are invalid." 5. I could able to login with the newly created user through "Userflows"

Read the document several times, deleted and recreated the two app(proxy and identityexp framework) registers mentioned in the documentation no success.

Any help would be appreciated.63218-b2c-insights-query-data.txt

@alfredorevilla-msft ....any luck on this issue....i have followed every step of documentation but still not able to sign in using Custom Policy....it works for sign up but not for sign in

@alfredorevilla-msft same issue here with code flow. Any updates?

Same issue, testing SignUpOrSignin.xml custom policy and can create local users ok but cannot login

Same issue. I was testing B2C_1A_SIGNUP_SIGNIN and I could create user but could not login.
Then I read the document again and found out that "allowPublicClient": null, so I updated it as the document then I worked.
Hope that helps!

I had the same issue. The change that resolved it that I deleted IdentityExperienceFramework and ProxyIdentityExperienceFramework applications created under b2c "blade" (weird name), and created them under AAD. That means that before doing this step https://docs.microsoft.com/en-us/azure/active-directory-b2c/tutorial-create-user-flows?pivots=b2c-custom-policy#register-the-identityexperienceframework-application and this one https://docs.microsoft.com/en-us/azure/active-directory-b2c/tutorial-create-user-flows?pivots=b2c-custom-policy#register-the-proxyidentityexperienceframework-application navigate to AAD and then to App registrations

When initially trying to upload TrustFrameworkBase.xml I received a validation error. I went looking around in that file and in the <TechnicalProfile Id="login-NonInteractive"> section I found these items:

<Item Key="METADATA">https://login.microsoftonline.com/{tenant}/.well-known/openid-configuration</Item>
<Item Key="authorization_endpoint">https://login.microsoftonline.com/{tenant}/oauth2/token</Item>

"Well that looks weird," I thought, "I'll try replacing {tenant} with my tenant name." Boom, no validation error! No mention of it in the tutorial, but oh well—it works, so, moving on...

Later, I run into the principle problem of this thread where sign up works but not sign in. After trying many things, I wondered about my "fix" for that validation error. So...

I switched the METADATA and authorization_endpoint URLs back to the default (as above) and uploaded the file with the Overwrite the custom policy if it already exists checkbox selected. No validation issues. Weird. But Ok, great, let's try signing in... Lo and behold, that seemed to do the trick: Sign in works now.

Hopefully sharing this helps someone else ♥