SAP Message USMD1B102 - Data model changes have made parts of the change document irrelevant

Diagnosis
Changes to hierarchies have been recorded in the change document.However, one of the node types of these hierarchies has since beenremoved from the data model.

System Response
The changes to the node types that no longer exist are not displayed.

Procedure
If these changes are important for your analysis, you must temporarilyinclude the node type in the data model again.