Invalid Credentials on "login to company" method

Hi,

We are trying to use the API in order to automate work order processes.

Despite following the API documentation/reference, we are running into an 'Invalid Credentials' error. The credentials work on the web site which makes us believe that the credentials issue has something to do with API permissions but we are not sure where we would change that or get access to it.

For reference, we are trying to use LogInCompany here https://developer.corrigo.com/reference#corrigoservice-class

If anyone could point us in the right direction, that would be greatly appreciated.