Hi @devopsfj ,
Thanks for reaching out.
I understand you are trying to update dateofBirth attribute using Graph API patch request but unable to do so.
dateofBirth is not a build in attribute in Azure AD B2C. It must be added as custom attribute which is by default stored in B2C as extension_{B2C appId-without-hyphens}_dateofBirth.
To update the dateofBirth custom attribute, you need to send patch request to the name stored in B2C as below:
and able to get the response as
Hope this will help.
Thanks,
Shweta
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