Hi,
I can create custom attributes in Azure AD B2C, they are showing on my registration form, and are successfully mapping to dataverse for text fields, like I have created a custom attribute "Address 2" fields and mapped it to Street 2 field in dataverse.
But I facing issues while mapping custom attributes to Dataverse Optionset fields, is ther a way to map the string/Int fields from Azure AD B2C to OptionSet/Choice fields in dataverse.
I have created a custom user field "Gender" field in Azure AD B2C, selected it uder User attributes and Claim attributes. (tried both with test/int data type)
After registration completed, it redirect me to the page to https://[myportalurl]/Account/Login/ExternalAuthenticationFailed

Thank you in advance for your expertise!