Key figure '&1' not assigned to the master planning object structure

What causes this issue?

Key figure '&V1&' is assigned to aggregate '&V2&' but not to master
planning object structure '&V3&.' This is not valid. Planning area '&V4&
' has been defined inconsistently.

System Response

The system detected an error when checking planning area '&V4&'.

How to fix this error?

To correct the inconsistency, you should proceed as follows:
If the planning area is a DP planning area, remove the key figure from
the planning area, then re-append it.
If the planning area is an SNP planning area, use the relevant menu
function to re-append the standard SNP key figures.

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.