What action is taken when the "Validate changes" button is clicked?

When the "Validate changes" button is clicked, a promotion branch is created without merging changes. This action is crucial in the Copado deployment process as it provides a way to test and validate the proposed changes in an isolated environment before any actual deployment occurs. The creation of the promotion branch allows teams to ensure that the planned modifications will work as intended and adhere to the necessary configurations and requirements.

This step is essential for identifying potential issues or conflicts that might arise during the deployment process. It serves as a precautionary measure that helps maintain the stability of the source and destination environments by ensuring that changes are thoroughly vetted before any merging or deployment takes place. Other options suggest actions that do not align with the validation process, emphasizing why the creation of a promotion branch is the correct interpretation of the action initiated by this button.