The notificiation types for the marked items are not identical

What causes this issue?

This error can only occur if you change the assignment of the
notification type to the inspection type after you have recorded
defects for the inspection lot.

System Response

The impermissible selections are cancelled and the function is
performed.

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.