is there a way to define 2 Items with the same code (duplicated)

Summary: Error:an Item with the same item number already exist

Content (required): we have this error (Error:an Item with the same item number already exist) while trying to  define 2 Items with the same code , is there is any solution ?

Version (include the version you are using, if applicable): cloud 22A

Code Snippet (add any code snippets that support your topic, if applicable):  Error:an Item with the same item number already exist