Followed this article Azure AD SSO AWS Cognito, created user pool in AWS Cognito and Enterprise application in Azure.
Clicked 'Test single sign on' in SSO, logged in with the user I have added and I am getting error "Required String parameter 'RelayState' is not present" after it redirects to this following url https://domainname.auth.us-east-1.amazoncognito.com/error?null. When I logged in with invalid user, received message 'User is not assigned to a role for the application' which is correct.
Anything I am missing here. Please help.