ADFS – MSIS7012 and MSIS8006 errors

Issue symptom Some of the federated users are not able to sign in Office 365 portal. In ADFS Admin logs see EventID 111 and 364 with following error message: Protocol Name: wsfed Relying Party: urn:federation:MicrosoftOnline Exception details: Microsoft.IdentityServer.RequestFailedException: MSIS7012: An error occurred while processing the request. Contact your administrator for details. ---> Microsoft.IdentityServer.Service.SecurityTokenService.ADAccountValidationException: MSIS8006: Query …