Grafana in EKS -> AWS Managed prometheus giving 403 error

Anyone have any luck getting Grafana running in an EKS cluster to connect to AWS Managed Prometheus? I feel like I’ve followed this guide about a dozen times now but am still getting method=GET path=/api/datasources/proxy/3/api/v1/query status=403 when testing the Prometheus Datasource connection.

Never mind, my IAM Policy was not broad enough. It’s working now.