這有好幾種可能性, 請依照這幾篇文章查修看看:
https://vand3rlinden.nl/index.php/2020/07/03/fix-sspr-failure-reason-onpremisesadminactionrequired/
https://janbakker.tech/kb-selfservicepasswordreset-write-back-problem-error-hr80230818/
https://serveanswer.com/questions/azure-ad-sspr-password-write-back-issue
微軟官方的查修辦法:
https://docs.microsoft.com/zh-tw/azure/active-directory/authentication/troubleshoot-sspr