I'm seeing a problem today that I haven't previously encountered.
When I navigate to the AWS SSO Users page there is a information message displayed at the top of the screen.
Your identity source is currently configured as 'External identity provider'. To add new users or edit their attributes, you must do this using your external identity provider.
Along with this message the 'Add user' button has been removed from the UI.
The problem is that my External identity provider is G Suite, and as stated in the AWS Docs for setting up SSO with G Suite.
AWS SSO supports automatic user provisioning via the System for Cross-Identity Management (SCIM). However, this is not yet officially supported for G Suite custom SAML applications. In the meantime, you can manually create users.
I have a new user that I need to create an SSO account for but I'm now completely unable to do this.
This has never been a problem before and I successfully added a user in this way on the 23rd May, just 3 days ago.
Thanks