Input data contains data records from a different saved dataset

What causes this issue?

One or more data records in the data to be saved has a save ID which
does not belong to the current save dataset.

System Response

Such data records are deleted from the data to be saved before the
dataset is written to the database in order to avoid any impact on
existing datasets.

How to fix this error?

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.