Login Credentials issue

I have a problem while login to the app as an administrator, when I run my application on Mendix Cloud. I cross Checked with the credentials given in the project as well, but it always says the user or password is invalid.
1 answers

When running locally, MxAdmin uses the password you specify in your modeler. When running in a different environment, you can set the MxAdmin password in the cloud portal. Source

If you're running a free app, you could consider adding account creation of an admin account to an after startup flow.