Amazon CodeCatalyst now offers the ability to link an issue to other issues. This allows customers to link issues in CodeCatalyst as blocked by, duplicate of, related to, or blocks another issue.
Customer use CodeCatalyst issues to organize and coordinate their team’s daily work. In addition, customers want to identify and visualize relationships between issues to plan the work effectively. The new capability assists teams to visualize dependencies between issues and see which issue is blocked with with other issue, is a duplicate of another issue, or if an issue blocks others issues.
Source:: Amazon AWS