SAP Message BRAIN103 - Cannot use variable &1 in structure elements

Diagnosis
Variable "&V1&" for characteristic "&V2&" in structure element "&V3&" is
used in the query. Variables that are replaced from the result of aquery, and variables than are replaced by the contents of a table mayonly be used in the filter of the query and not in structure elements.

System Response
The query is not executed.

Procedure
Change the query by removing variable &V1& from the structure, or change
the variable definition. Note that the variable may also be used inother queries.