This operation scans all your workflow runs and attempts to cancel them. If a specific workflow run cannot be canceled, it will return an error message. Therefore, some workflow runs may not be cancelled at the end. In such cases, you can run the bulk cancel operation multiple times.
For multi-value filters, a workflow run matches if its value equals any of the given values (OR logic), and multiple filters are combined with AND logic. Multiple values can be passed either by repeating the query parameter (label=label_1&label=label_2) or as a single comma-separated value (label=label_1,label_2).