Close work items using commit messages - Azure Repos
Azure Repos Close work items by mentioning keywords in commit messages. When you mention a work item in a commit that makes it to the default branch via one of the supported workflows, we will attempt to resolve that work item. The three supported keywords to trigger a resolution mention are fix, fixes, and fixed (case insensitive).
https://docs.microsoft.com/en-us/azure/devops/repos/git/resolution-mentions?view=azure-devops