VS30063 : You are not authorized to access the Site

This error usually comes up when you are using a PAT token to access the agent pools of AzureDevOps. This is mainly due to the reason that PAT token doesn’t have the required access

Fix/Solution: Generate a new PAT token that has “Full” access instead of the custom access . The reason here is when you try to run an agent the PAT token needs full access instead of custom access only to builds and code!