You need to request access before you can start using the Field Nation Client API.
All Integration products require an active contract with Field Nation, Please contact your account manager or sales rep at Field Nation.
Information: When work orders are created or updated from the API, the Field Nation username associated with your API credentials will display in the Work Order > History tab. Refer to the image below for more information.
Once your access has been granted, Field Nation will assign you a unique client_id and client_secret. You can use these values along with your Field Nation login credentials to call the Request OAuth Token endpoint and begin making API requests.