We have several ways to trigger a pipeline or to run a single job, and all of them should support passing variables that will have the highest priority (https://docs.gitlab.com/ee/ci/variables/#priority-of-variables). We might want to pass variables in these cases: - [x] **Run Pipeline** button in **CI/CD > Pipelines** page: https://gitlab.com/gitlab-org/gitlab-ce/issues/44059 - [X] Pipeline Schedules UI: gitlab-ce#32568 - [x] Pipeline Schedules API: gitlab-ce#34518 - [ ] Manual jobs: gitlab-ce#24935 - [ ] Triggers UI - [X] Triggers API - [x] Triggers API when using `$CI_JOB_TOKEN`: https://gitlab.com/gitlab-org/gitlab-ee/issues/2772 - [ ] Pipelines API (create): https://gitlab.com/gitlab-org/gitlab-ce/issues/25045 Related: - [ ] Make trigger variables available from API/Webhook: gitlab-ce#28105