You can only restrict to one key figure in the global filter

What causes this issue?

The filter for the query can contain one key figure only.

System Response

The OLAP server can process just one key figure as the filter selection
for the whole query.

How to fix this error?

Remove all additional key figures from the global filter.
If the query is to be based on the numerical values of multiple key
figures, remove all key figures from the global filter. Then define the
key figures either in the rows or columns of 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.