There may be occasions when you change your credentials (your password, for example) for a particular publisher. In this case you will need to also update your credentials in the Platform. We’ll explain how to do this below.
Just follow these steps to update your credentials:
Navigate to Channels then click the Manage Accounts button.
Once you have updated your credentials, you may still see a red error message saying "Invalid username/password." This message will not disappear immediately, but it should resolve after the nightly sync has taken place. To learn more about this error, check out our documentation here.