Change report &1 before executing (compound characteristics)

What causes this issue?

Form &V2&, which is used in report &V1&, has been changed. An entry was
added or changed for a characteristic with compound characteristics.

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

Characteristic &V3&, which was chosen for the report, can only be
interpreted together with the value of one or several other
characteristics.
For the situation resulting from the change in the form, the
concatination of characteristics was dissolved for characteristic &V3&.

System Response

You cannot execute the report until you have saved it under "Change
report".

How to fix this error?

Fill in all the required fields under "Change report", and then save.
DEFINE &MESSAGE_TYP& = &V4&.
IF &MESSAGE_TYP& = 'A'.
<DS:TRAN.KDNN>Change report</>
ENDIF.
IF &MESSAGE_TYP& = 'E'.
<DS:TRAN.KDNN>Change report</>
ENDIF.

Error message extract from SAP system. Copyright SAP SE.