...

Archived Test Plans are no longer used as scope for the Test Run Status and Requirement Status,

Xray built-in reports and gadgets

Archived issues and test runs no longer appear on reports, gadgets ...

Xray Document Generator exports

Archived issues and test runs no longer appear on documents exported by docgen ...

Issue data tables sections

Whenever an issue is archived it is removed from the Lucene indexes and thus no longer appears on JQL search results. This has impact on some of the Xray issue data tables used to present the associations between issues.

Archiving Projects

When archiving a Project its issues are archived as well. If any Test or Test Execution is found, Xray will archive its internal data, namely the Test Runs will be archived and the Tests will be hidden from the Test Repository and Test Plan Boards.

This can be a long running task depending on the amount of Xray internal data to handle. Currently, Jira provides no way of knowing the progress of a project archival. However you can use this:

Xray built-in reports and gadgets

Archived issues and test runs no longer appear on reports, gadgets ...

Xray Document Generator exports

Archived issues and test runs no longer appear on documents exported by docgen ...

Issue data tables sections

Whenever an issue is archived it is removed from the Lucene indexes and thus no longer appears on JQL search results. This has impact on some of the Xray issue data tables used to present the associations between issues.