:red_circle: They **don't support _scoped variables_**:
* variables used to parameterize the jobs Docker image(s) (ex: `MAVEN_IMAGE` or `K8S_KUBECTL_IMAGE`),
* variables that enable/disable some jobs behavior (ex: `MAVEN_DEPLOY_ENABLED`, `NODE_AUDIT_DISABLED` or `AUTODEPLOY_TO_PROD`).
* variables that enable/disable some jobs behavior (ex: `MAVEN_DEPLOY_ENABLED`, `NODE_AUDIT_DISABLED` or `AUTODEPLOY_TO_PROD`),
* variables used in [artifacts](https://docs.gitlab.com/ee/ci/yaml/#artifacts), [cache](https://docs.gitlab.com/ee/ci/yaml/#cache) or [rules](https://docs.gitlab.com/ee/ci/yaml/#rules) sections (ex: `PYTHON_PROJECT_DIR`, `NG_WORKSPACE_DIR` or `TF_PROJECT_DIR`).
:white_check_mark: They **do support _scoped variables_**: