Key figure '&1' cannot be input-ready. See long text.

What causes this issue?

Key figures '&V1&' and '&V4&' are based on characteristics in the data
part of DataStore-Object '&V3&'. These characteristics are compounded.
To ensure consistent master data values in DataStore-Object '&V3&' when
changed via the InfoProvider '&V2&'<(>,<)> either both or none of the
key figures '&V1&' and '&V4&' have to be contained in InfoProvider '&V2&
' and in the query used on this InfoProvider.

System Response

The values of key figure '&V1&' cannot be changed in input-ready
queries.

How to fix this error?

Add key figure '&V4&' to the query.

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.