Is there way to systemically change BU associated on existing project

Summary:

BU A merges into BU B. BU A has 1,000+ existing projects associated. Is there an option to systematically update/change BU A to BU B ?

Content (please ensure you mask any confidential information):

Goal is to discontinue BU A and stop performing project costing period close and rolling period for BU A

Version (include the version you are using, if applicable): 24B

Code Snippet (add any code snippets that support your topic, if applicable):