Hi @德 阿 , Thanks for reaching out.
I can understand you are looking for steps to configure AWS IAM Identity Center. You can refer https://learn.microsoft.com/en-us/entra/identity/saas-apps/aws-single-sign-on-tutorial to integrate with AWS IAM Identity Center with Microsoft Entra SSO.
I have repro'd the steps in my lab and able to configure it successfully.
Please follow the steps mentioned in above link, if you still getting any issues, please letus know to help you further.
Hope this will help.
Thanks,
Shweta
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