Lawson User for API Access

Let me start off by saying I know almost nothing about Lawson. I know that our version is in the Cloud and we use HR and Financials - that is the limit to my knowledge. What we are hoping we can do is setup a new User in Lawson to access the API to hit the Company and Building tables ONLY. Does anyone know how to setup a new user so that user can be used to hit just those two tables through the API/Web Services? Thanks for any help you can provide. -Mike