RESTlets > 401 Authorization Required > INVALID_LOGIN_CREDENTIALS > Invalid Password > Occurring when login and password are correct

After confirming that you are using the correct email, password, account number, and there are no ip restrictions.

This error can occur if the email or password contains a special character. For example the plus(+) symbol.

As an alternate solution, replace the plus(+) symbol in the header with the HTML URL encoding for that symbol, which is  %2B

You can locate the HTML URL encoding for other symbols from additional online resources.