| `Web URL` | The base URL to the JIRA instance web interface which is being linked to this GitLab project. E.g., `https://jira.example.com`. |
| `JIRA API URL` | The base URL to the JIRA instance API. Web URL value will be used if not set. E.g., `https://jira-api.example.com`. |
| `Project key` | The short identifier for your JIRA project, all uppercase, e.g., `PROJ`. |
| `JIRA API URL` | The base URL to the JIRA instance API. E.g., `https://jira-api.example.com`. This is optional. If not entered, the Web URL value be used. |
| `Project key` | Put a JIRA project key (in uppercase), e.g. `MARS` in this field. This is only for testing the configuration settings. JIRA integration in GitLab works with _all_ JIRA projects in your JIRA instance. This field will be removed in a future release. |
| `Username` | The user name created in [configuring JIRA step](#configuring-jira). |
| `Password` |The password of the user created in [configuring JIRA step](#configuring-jira). |
| `JIRA issue transition` | This is the ID of a transition that moves issues to a closed state. You can find this number under JIRA workflow administration ([see screenshot](img/jira_workflow_screenshot.png)). **Closing JIRA issues via commits or Merge Requests won't work if you don't set the ID correctly.** |
After saving the configuration, your GitLab project will be able to interact
