Data has not been changed and will therefore not be saved

What causes this issue?

You have not changed or added to the current data, so the save function
will not be executed.

System Response

The data has not been changed.

How to fix this error?

The save function is only executed if you change data by adding to it
or overwriting it.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.