This article explains how to refresh an expired token (Authorization token expires after 30 days) in Postman.
As a Reporting Admin, navigate to your profile on the CMS (Users>>Manage Users>> Your name>>Edit Profile):
Then, proceed to replace the token in the Authorization field in the header of Postman:
You need a combination of an Admin role and "WorkLink Analyst" license to access API key on your profile.
To run the GraphQL query using Postman, make sure the address is set to https://cms.scopear.com/api/v3/graphql and the method is set to 'Post'.