SAP Message SALV_BS_MSG304 - Filter condition cannot be interpreted

Diagnosis
Linked expressions are permitted in filter conditions Some charactersare interpreted as spearators or operators (for example, "<(><<)>", ">","!", "=", hyphen, semicolon, and double quoataion marks). The meaning ofthe character string "&V1&" cannot be interpreted.

System Response
The specified filter condition is not used.

Procedure
Change the filter condition. It might help if you put the characterstring in double quotation marks. If possible, avoid special charactersor replace them with a placeholder ('*').