References:
Note:
When following the above youtube tutorial and creating a non-gallery SSO app, we encountered an issue that I believe was due to duplicate users in AWS (we need to ensure that existing groups don’t have users with the same email in Microsoft), but it may be best to use the “AWS IAM Identity Center” application from the Microsoft enterprise app gallery. The following instructions still apply except for the initial bullet point for app creation in Microsoft section
Prerequisites:
Identify AWS groups with the appropriate target permissions
Ensure those same group names exist within Microsoft
owners / members should be set appropriately
Create backup IAM admin user with access to identity center in AWS in case changes need to be reverted
In AWS:
change IdP to external
download metadata file
In Microsoft:
create new enterprise app (non-gallery app)
in single sign-on section, select SAML
upload metadata file from AWS
save the SAML config
Download federation metadata xml
In AWS:
upload metadata file from Microsoft
finish changing identity source
enable automatic provisioning
copy SCIM endpoint / access token for use in Microsoft
In Microsoft:
...
in Provisioning section, set mode to automatic
...
set tenant url to SCIM endpoint, secret token to access token (from the previous AWS provisioning setup screen)
...
test connection
...
save provisioning config
...
make sure to assign groups to enterprise app
...
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