Link projects for cross-project search
Before you can search across multiple projects, you must link them together. Cross-project search only works between projects that are explicitly linked within your Elastic Cloud organization.
This guide explains how to link projects in the Elastic Cloud UI so you can run cross-project searches from an origin project. For an overview of cross-project search concepts such as origin projects, linked projects, and search expressions, refer to Cross-project search.
For prerequisites, project compatibility requirements, and technical preview restrictions, refer to Configure cross-project search in Deploy and manage.
To link projects, use the cross-project search linking wizard in the Elastic Cloud UI:
On the home screen, find the project you want to use as the origin project and click Manage.
Use the sidebar to navigate to the Cross-project search page.
Click Link projects. Browse or search for projects to link to the origin project. Only compatible projects appear in the project list. You can filter by type, cloud provider, region, and tags.
Select the checkbox for each project you want to link. You can link up to 20 projects per origin project.
If a project you expected to link to is missing from the list, it might not be compatible with the origin project.
Complete the remaining steps in the wizard to review and save your selections. In the last step, you can click View API request to see the equivalent API request for linking to the selected projects.
When your configuration is saved, a page with the list of linked projects opens.