Invalid Grant on different tenant - wso2

Question

I'm very new in WSO2 AM and I have this scenario:
I create a new tenant on carbon, on that new tenant I create a JDBC userstore, my users are listed in the "Identity > Users and Roles" tab correctly, then I create a new Service Provider with OAuth/OpenID Connect Configuration and grant_type password.
When I want to test my configuration (¿generate a new token?) via Postman > Get New Access Token like the following Image:
When I request the token the answer is
{"error_description":"Users in the tenant domain : carbon.super do
not have access to application
myapplication","error":"invalid_grant"}
I don't understand why it tries to use the carbon.super domain when I'm using my new domain in the Access Token URL.
Searching in Google I found that when I enable my Service Provider like a "SaaS Application" can work, but when I do it the new response is:
{"error_description":"Authentication failed for
nicolas_webfile","error":"invalid_grant"}
I'm using WSO2 API Manager 2.6.0

Answer 1

As you're using API Manager, change the request as below.
URL: http://localhost:8243/token
Username: user#webfile.com