You must be a member of the jira-developers group to start reindex.
Getting started
Synchronization between the repository and app will start automatically. However, reindexing may be required to manually start the synchronization process.
There are two ways to do this:
Method 1
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To start update of all or multiple selected repositories, go to the Manage integrations page then use the checkboxes on the left of the list to mark integrations for reindex.
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With the selected integrations, click
Actions ➜ Reindex selected. Once synchronization is started, the progress will be displayed on this tab.
Method 2
If a specific repository or integration needs to be synchronized, click the 
Actions ➜ Reindex integration.
Git log entries may not immediately appear when you open Git Commits tab right after the app installation. You need to wait until the revision indexer job completes the initial synchronization.
Indexing Explainer for Jira Cloud
The Git Integration for Jira Cloud app automatically indexes commits, branches, tags, and pull/merge requests.
Starting on October 28, 2019, indexing is now calculated based on per repository activity. The overall goals are to reduce the strain on git services and make the indexing service more available for the webhook triggers.
For detailed information on this Jira Cloud feature, see Feature: Classic Indexing Explainer.
Indexing errors
Indexer will show an error message on the Jira issue ➜ Git Commits tab if indexing issues are found.
