Hi @Shailesh Devadiga • Thank you for reaching out.
As of now Graph API can only validate passwords to check whether the passwords meet the complexity requirements or not. You cannot use Graph API to do the credential validation to determine if the password of the given user is correct or not. For credentials validation, the credentials must be supplied to one of the below endpoints (depending on auth flow used):
- Authorization : https://login.microsoftonline.com/tenant_name/oauth2/v2.0/authorize
- Token : https://login.microsoftonline.com/tenant_name/oauth2/v2.0/token
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