What can a change schedule be used for?

The change schedule is used to help plan changes, assist in communication, avoid conflicts, and assign resources. It can also be used after changes have been deployed to provide information needed for incident management, problem management, and improvement planning

https://www.bmc.com/blogs/itil-change-enablement/#:~:text=The%20change%20schedule%20is%20used,problem%20management%2C%20and%20improvement%20planning.