Make it clearer when CI_MERGE_REQUEST_ variables are available

1 files changed, 17 insertions, 17 deletions

diff --git a/doc/ci/variables/predefined_variables.md b/doc/ci/variables/predefined_variables.md
index 846c539daab..4c562138b98 100644
--- a/doc/ci/variables/predefined_variables.md
+++ b/doc/ci/variables/predefined_variables.md
@@ -49,23 +49,23 @@ future GitLab releases.**
 | `CI_JOB_STAGE`                          | 9.0    | 0.5    | The name of the stage as defined in `.gitlab-ci.yml` |
 | `CI_JOB_TOKEN`                          | 9.0    | 1.2    | Token used for authenticating with the [GitLab Container Registry][registry] and downloading [dependent repositories][dependent-repositories] |
 | `CI_JOB_URL`                            | 11.1   | 0.5    | Job details URL |
-| `CI_MERGE_REQUEST_ID`                   | 11.6   | all    | The ID of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_IID`                  | 11.6   | all    | The IID of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_PROJECT_ID`           | 11.6   | all    | The ID of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_PROJECT_PATH`         | 11.6   | all    | The path of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) (e.g. `namespace/awesome-project`) |
-| `CI_MERGE_REQUEST_PROJECT_URL`          | 11.6   | all    | The URL of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) (e.g. `http://192.168.10.15:3000/namespace/awesome-project`) |
-| `CI_MERGE_REQUEST_REF_PATH`             | 11.6   | all    | The ref path of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). (e.g. `refs/merge-requests/1/head`) |
-| `CI_MERGE_REQUEST_SOURCE_BRANCH_NAME`   | 11.6   | all    | The source branch name of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_SOURCE_BRANCH_SHA`    | 11.9   | all    | The HEAD sha of the source branch of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_SOURCE_PROJECT_ID`    | 11.6   | all    | The ID of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_SOURCE_PROJECT_PATH`  | 11.6   | all    | The path of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_SOURCE_PROJECT_URL`   | 11.6   | all    | The URL of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_TARGET_BRANCH_NAME`   | 11.6   | all    | The target branch name of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_TARGET_BRANCH_SHA`    | 11.9   | all    | The HEAD sha of the target branch of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_TITLE`                | 11.9   | all    | The title of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_ASSIGNEES`            | 11.9   | all    | Comma-separated list of usernames of assignees for the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). [Multiple assignees for merge requests](https://gitlab.com/gitlab-org/gitlab-ee/issues/2004) is scheduled for a future release |
-| `CI_MERGE_REQUEST_MILESTONE`            | 11.9   | all    | The milestone title of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
-| `CI_MERGE_REQUEST_LABELS`               | 11.9   | all    | Comma-separated label names of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) |
+| `CI_MERGE_REQUEST_ID`                   | 11.6   | all    | The ID of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created. |
+| `CI_MERGE_REQUEST_IID`                  | 11.6   | all    | The IID of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_PROJECT_ID`           | 11.6   | all    | The ID of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_PROJECT_PATH`         | 11.6   | all    | The path of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) (e.g. `namespace/awesome-project`). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_PROJECT_URL`          | 11.6   | all    | The URL of the project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md) (e.g. `http://192.168.10.15:3000/namespace/awesome-project`). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_REF_PATH`             | 11.6   | all    | The ref path of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). (e.g. `refs/merge-requests/1/head`). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_SOURCE_BRANCH_NAME`   | 11.6   | all    | The source branch name of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_SOURCE_BRANCH_SHA`    | 11.9   | all    | The HEAD sha of the source branch of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_SOURCE_PROJECT_ID`    | 11.6   | all    | The ID of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_SOURCE_PROJECT_PATH`  | 11.6   | all    | The path of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_SOURCE_PROJECT_URL`   | 11.6   | all    | The URL of the source project of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_TARGET_BRANCH_NAME`   | 11.6   | all    | The target branch name of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_TARGET_BRANCH_SHA`    | 11.9   | all    | The HEAD sha of the target branch of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_TITLE`                | 11.9   | all    | The title of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_ASSIGNEES`            | 11.9   | all    | Comma-separated list of username(s) of assignee(s) for the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created. |
+| `CI_MERGE_REQUEST_MILESTONE`            | 11.9   | all    | The milestone title of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
+| `CI_MERGE_REQUEST_LABELS`               | 11.9   | all    | Comma-separated label names of the merge request if [the pipelines are for merge requests](../merge_request_pipelines/index.md). Available only if `only: [merge_requests]` is used and the merge request is created.  |
 | `CI_NODE_INDEX`                         | 11.5   | all    | Index of the job in the job set. If the job is not parallelized, this variable is not set. |
 | `CI_NODE_TOTAL`                         | 11.5   | all    | Total number of instances of this job running in parallel. If the job is not parallelized, this variable is set to `1`. |
 | `CI_API_V4_URL`                         | 11.7   | all    | The GitLab API v4 root URL |