What should be applied to the existing metadata groups after creating connection behaviors?

Applying quality gates to existing metadata groups after creating connection behaviors is essential for ensuring that the code meets predefined quality standards and works effectively within the defined parameters. Quality gates act as checkpoints in the deployment pipeline that evaluate aspects such as code quality, test coverage, and overall functionality before changes are promoted to higher environments.

When connection behaviors are established, they may introduce new ways in which metadata interacts or performs. Thus, implementing quality gates ensures that these changes align with organizational standards and prevent any potential issues during deployment. By enforcing quality gates, teams can identify problems early in the process, reducing the risk of costly failures later in the deployment cycle.

In this context, other options like code validations, deployment records, or test cases may play important roles in different stages of the development cycle, but they do not specifically serve the purpose of evaluating new changes post-creation of connection behaviors as effectively as quality gates do.