Org Policies error when creating a Cloud Function

When trying to create a "hello world" Cloud Function, I get the error message:

"The request has violated one or more Org Policies. Please refer to the respective violations for more information."

Now, which org policies have been violated? In the Log Explorer I find the error message like this:

{
insertId: "XXX"
logName: "projects/XXX/logs/cloudaudit.googleapis.com%2Factivity"
protoPayload: {10}
receiveTimestamp: "2021-11-26T11:42:16.735011108Z"
resource: {2}
severity: "ERROR"
timestamp: "2021-11-26T11:42:16.490247Z"
}

I found the solution to my own issue: After clicking "Create Function", I had to choose "Run time, build, connections and security settings" -> "Connections" and select an option.

No option had been selected there, I guess this was due to my project's network settings.

Now I can deploy :)

Logging will have the detail error.details[x].violations[x].type. The log entry states the constraint in violation.

The following log entry shows a violation for location:

"type": "constraints/gcp.resourceLocations"

Example log entry:

"error": {
  "code": 400,
  "message": "The request has violated one or more Org Policies. Please refer to the respective violations for more information."
  "status": "FAILED_PRECONDITION" 
  "details\": [
    {
      "@type": "type.googleapis.com/google.rpc.PreconditionFailure",
      "violations": [
        {
          "type": "constraints/gcp.resourceLocations",
          "subject": "orgpolicy:projects/<project>",
          "description": "Constraint constraints/gcp.resourceLocations violated for projects/<project> attempting GenerateUploadUrlActionV1 with location set to us-central1. See https://cloud.google.com/resource-manager/docs/organization-policy/org-policy-constraints for more information."
        }
      ]
    }
  ]
}

Org Policy Constraints